200933152 · 九、發明說明： 【發明所屬之技術領域】 本發明係與重力感測有關，特別係與藉重力感測以判 別物體方向性之技術有關。 【先前技術】 隨著電池技術及半導體技術的不斷創新，各種手持式 _電子設備大行其道，諸如行動電話、可攜式多媒體播放器 (portable multimedia player, PMP)、遙控器、MP3 播放 器、個人數位助理（personal digital assistant)、數位相 機、可攜式全球定位系統（portable global positioning system)、電子字典（electronic dictionary)以及用於微 軟VISTA作業系統的SideShow裝置等等不一而足，消費者 攜帶或使用多種各自獨立的手持設備實極為繁雜且不便， 故許多手持設備會採用二合一之方式整合二獨立系統於一 〇機體内，如一 SideShow裝置與一遙控器之組合，或一行動 電話與一 PMP之組合，通常此種二合一之組合係將二系統 之鍵盤配置於一矩形殼體之二平行面板上，當使用者以手 掌握持該二合一設備以操作其中一系統時，很容易不經意 的碰觸另一侧位於背面之系統的鍵盤按鍵，造成不必要的 誤動作及電池電力的耗費。 故此類雙面鍵盤配置之手持設備實有必要設置一切換 開關，以切換某一側之鍵盤為致能（enable)狀態’另一侧 則為失能（disable)狀態，可令使用者不致對失能狀態下的 5 200933152 鍵盤產生無意識的操作。此類切換開關可採手動式戍 式，手動式係以機械開關之手動操作進行，較為不^， 自動式係以重力感測器自動偵測手持設備之方: =3面板為向上之方位，該侧面板即為使用者所二 予=統，以將該側之鍵盤致能，另一侧向下之鍵盤則 將重力：：：：往採用重力感測器之方位判別方法，皆係 私“、Γ維直角座標軸上之分量做精確且複雜之計算， 僅判別結果’此種計算需要高效能的微處理器，不 上體積較大’成本亦較高，不適於小型設備或低單價產品 【發明内容】 方位划：月之主要目的係在於提供一種使用重力感測器之 一 1 ,方法，其無需經過任何計算過程，直接以重力之 。為判別之依據，有效簡化判別流程，並且無需 II微處理n即得崎行，適用範圍更為廣泛。 士认為達上述目的’本發明係自-三維重力感測器取得重 以三座標軸上之分量，先以Ζ軸分量（gz)產生第一階段 時別結果:當w.5g>gz> 0.5g >即刀別判別為第一面板向上及第二面板向上，當〇. ^ 根 g時則以gz之正負及y軸分量（gy)兩參數合 并判別，當gZ>Q且_G.5g>gy>—i 5g或當gz<〇且 -ίΛ〉gy >0.5g時’判別為第—面向上’當gz < 〇且 5g > σν > -1 c_. _ls A. bg或當gZ > 〇且l化> gy > 〇 5g時，則 200933152 t 判別為第 care)， 【實施方式】 首請參閱第一圖，係Α — 備之外觀干立圖^糸為一具有雙面鍵盤配置之手持設 ^圖，该手持設備具 形殼體（1)且有二万盔亚〜 π u; Π9,— ” 為平仃之第一面板（11)及第二面板 ，：一面板(11，12)分別設置有-鍵盤(m， )，ϋ可依實際需要而增設其 (112 ， 122)。 續月 > 目帛—® ’其為本發明之一較佳實施例之電路 方塊圖，前述殼體⑴㈣具有兩獨立㈣，即第一系統 (la)及第一系統’該第一及第二系統（^，比)分別 設有一第一鍵盤（111)及第二鍵盤（121)，如前所述，該 π —鍵盤（111，121)係位在殼體（1)之二平行面上，本發明 〇設於殼體（1)内設有一重力感測g⑵，可感測重力於三 維直角座標軸上之分布變化，該重力感測器（2)電連接至 一控制器（3)，重力感測器（2)將重力於直角座標三軸上 分布狀態之重力訊號傳送至控制器（3)，該控制器（3)之 一輪出端連接至一繼電器（4)之控制端（41a，41b)，該二 控制知》(41a ’ 41b)之間设有一反相器（43)，使二控制端 (41a，41b)恆定為反相狀態，每一控制端（41a，41b)分別 控制一組開關（42a，42b)之啟閉’該二開關（42a，42b)分 別電連接於第一鍵盤（ΙΠ)及第二鍵盤021)，控制器 200933152 (3)根據來自重力感測器（2)之重力訊號而判斷殼體（j) 之方向狀態，而輸出一切換訊號至繼電器（4)之控制端 (41a，41b)，以控制兩鍵盤（111，121)分別為致能 (enable)及失能（disable)狀態，所謂致能狀態係指該鍵盤 可正常操作，失能狀態係指該鍵盤不可操作，兩鍵盤 (111 ’ 121)永遠處於相反狀態。 續請參閱第三圖，假設手持設備之殼體（1)係成水平 〇横置狀態，即其第一面板（11)及第二面板（12)係平行於三 維直角座標之χ-y平面，若設^第-面板⑴）為正面，第 二面板（12)為反面，即z軸係朝向第一面板（11)之方向， 則當第-面板⑴）朝上（即背向地面）而第二面板朝下 (面向地面）時，重力完全落在2軸上，且係朝向下方 (即地面），此時z轴上會測得_g之重力（因與z轴之正 向反向’故得負值），即如第三入圖所示之狀態。反之， 若將殼體⑴水平翻轉⑽度，使第二面板⑽朝上 Ο - 朝下時，此時z軸轉為朝下，重力仍完成落於 :轴，但因重力方向與z轴相同’故2轴即測得之重 力’控制器⑶即藉此原理判㈣係第一面板⑻或第二 二=為朝上’進而控制繼電器⑷使朝上-側之鍵盤 (Π1或121)為致能狀態，另一側丨 ㈣為反相之失能狀態。 味參閱苐四圖及第五圖，其係為本發明之方位判別方 L程圖，首先自重力感測器⑵取得三維直角座^重 力分量值⑽，即x軸分量gx 肖座“之重 辟’依2軸分量之大小而產生第：：厂及2軸分量 生第—階段判別結果（S2)，當 8 200933152 4分量大於1§或小於士時（S2a， 絕 .f值大於W㈣不睬(-，tear侧二 狀態’不做改變，該㈣一第一臨界值，因在靜止狀'離 I ’任何-軸之重力分量皆不大於匕或小於*，大:k -lg即表示手持設備係在運動狀態下，此時使用者 臨界值-理論值，並非:=作事:上此： ❺14,之範圍内皆可選用為臨界值，i 5g尤為較佳。 虽Z轴分量小於-G.5g且切等於第— :(咖)’判別為第一方位狀態(S4a)，即第一= ;第第:=之其-為向上，若以第三圖所示之狀1， )向上’當z軸分量小於等於該第-臨界值 值且大於G.5g時（S2d)，判別為第二方位狀能 ,(=，即相反於前述第—方位狀態，另—側⑩向上， 〇 =所不之狀態，即第二面板(12)向上。而當z轴 〇二置小於等於0.5g且大於等於_05g值伽），即以2軸 二量^負性（S3)Ay軸分量大小（S31，卿做為判別依 f :第二階段之判別，當z轴分量為負值⑽），且7 =罝小於等於-第二臨界值並大於❿時側C)，判 為第-方位狀態（_，相同於前述之第一臨界值，第二 臣品界值係大於或等於lg，12§至故皆可選用，由以1 佳；當z軸分量為負值⑽），且又軸分量小於—〇··並 〇於等於第二臨界值之負值時（遍），判別為第二方位狀 L (S4b)。而當z軸分量為正值（S3Y) ’且^軸分量小於 200933152 等於第二臨界值之正值並大於〇.5g時(S32c)，判別為第 方位狀態⑽）·…轴分量為正值⑽），且 丄於0’5g並大於等於第二臨界值之負值時(s咖） 為第一方位狀態（S4a)。另轴 】別 ⑽a，S32a)，包括z軸分量等於〇時，則 2 不睬（S4c)。 干利N為 〇 π本發明之上述判別方法，可經由重力之三軸分量、 ，得到判別結果，無需經過煩複之運算，實極為簡易，除 ^縮短判別所需之時間外，亦可降低對微處理器效能之需 、上所述者，僅為本發明之一較佳實施例之具體說 非用以㈣本發明之專利範圍，其他運用本發明之創 ^精神所為之等效變換，均應俱屬本發明之專利範圍。 【圖式簡單說明】 第一圖：具雙面鍵盤配置之手持設備之外觀示意圖。 第二圖：第一圖所示手持設備之電路方塊圖。 第二圖：本發明之方向判別示意圖。 第四圖：本發明之判別方法流程圖。 第五圖：本發明之判別方法流程圖。 【主要元件符號說明】 b··手持設備 la···第一系統 200933152200933152 · IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to gravity sensing, and in particular to techniques for determining the directionality of an object by gravity sensing. [Prior Art] With the continuous innovation of battery technology and semiconductor technology, various handheld electronic devices are popular, such as mobile phones, portable multimedia players (PMPs), remote controllers, MP3 players, personal digital devices. Personal digital assistants, digital cameras, portable global positioning systems, electronic dictionary and SideShow devices for Microsoft VISTA operating systems, etc., are carried by consumers or The use of a variety of separate handheld devices is extremely cumbersome and inconvenient, so many handheld devices use a two-in-one approach to integrate two independent systems into a single body, such as a combination of a SideShow device and a remote control, or a mobile phone and a mobile phone. A combination of PMPs, usually a two-in-one combination is to arrange the keyboard of the two systems on two parallel panels of a rectangular casing. When the user grasps the two-in-one device by hand to operate one of the systems, It is easy to inadvertently touch the keyboard keys of the system on the other side of the other side. It takes into malfunction and unnecessary battery power. Therefore, it is necessary to set a switch for the handheld device of such a double-sided keyboard configuration to switch the keyboard on one side to the enable state and the other side to the disable state, so that the user does not The 5 200933152 keyboard in the disabled state produces an unintended operation. Such a switch can be manually operated, and the manual type is manually operated by a mechanical switch. The automatic type is automatically detected by a gravity sensor: =3 the panel is in an upward orientation. The side panel is the user's two systems, to enable the keyboard on the side, and the keyboard on the other side to gravity:::: to the direction of the gravity sensor, all private ", the components on the right-angled coordinate axis are accurately and complicatedly calculated, and only the result is judged. 'This calculation requires a high-performance microprocessor, which is not bulky. The cost is also high. It is not suitable for small equipment or low unit price. SUMMARY OF THE INVENTION Positioning: The main purpose of the month is to provide a method for using a gravity sensor, which can directly simplify the discrimination process without any calculation process and directly rely on gravity. II micro-processing n is the best for a wide range of applications. The author believes that the above-mentioned purpose of the invention is that the self-three-dimensional gravity sensor achieves the weight on the three-coordinate axis, first with the Ζ-axis component. Gz) When the first stage is generated, the result is: when w.5g>gz> 0.5g >, the knife is discriminated as the first panel up and the second panel is up, when 〇. ^ root g is gz positive and negative and y Axis component (gy) two-parameter combination discriminant, when gZ>Q and _G.5g>gy>-i 5g or when gz<〇 and -ίΛ>gy > 0.5g, the discriminant is the first-face-up when gz < 〇 and 5g > σν > -1 c_. _ls A. bg or when gZ > l and > gy > 〇 5g, then 200933152 t is judged as the first care), [Embodiment] Please refer to the first figure, which is a hand-held device with a double-sided keyboard configuration. The handheld device has a shaped housing (1) and has 20,000 helmets ~ π u; Π9, — ” is the first panel (11) and the second panel of the flat panel: one panel (11, 12) is respectively provided with a - keyboard (m, ), which can be added according to actual needs (112, 122) . </ br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> The two systems (^, ratio) are respectively provided with a first keyboard (111) and a second keyboard (121). As described above, the π-keyboard (111, 121) is located on the parallel surface of the housing (1). The invention is provided with a gravity sensing g(2) in the casing (1) for sensing the distribution change of gravity on the three-dimensional right-angle coordinate axis, and the gravity sensor (2) is electrically connected to a controller (3) The gravity sensor (2) transmits the gravity signal of the gravity on the three-axis distribution state of the rectangular coordinate to the controller (3), and one of the controllers (3) is connected to the control end of the relay (4) ( 41a, 41b), between the two control knowers (41a '41b) is provided an inverter (43), so that the two control terminals (41a, 41b) are constantly in an inverted state, each control terminal (41a, 41b) Controlling the opening and closing of a group of switches (42a, 42b) respectively, the two switches (42a, 42b) are electrically connected to the first keyboard (ΙΠ) and the second keyboard 021 respectively, and are controlled (2009) Determine the direction of the housing (j) based on the gravity signal from the gravity sensor (2), and output a switching signal to the control terminals (41a, 41b) of the relay (4) to control the two The keyboards (111, 121) are respectively enabled and disabled. The so-called enabled state means that the keyboard can operate normally, and the disabled state means that the keyboard is inoperable, and the two keyboards (111 '121) Always in the opposite state. Continuing to refer to the third figure, it is assumed that the casing (1) of the handheld device is horizontally placed, that is, the first panel (11) and the second panel (12) are parallel to the χ-y plane of the three-dimensional right-angled coordinates. If the first panel (1) is the front side and the second panel (12) is the reverse side, that is, the z-axis is oriented toward the first panel (11), when the first panel (1) is facing upward (ie, facing the ground) When the second panel faces down (facing the ground), the gravity falls completely on the 2 axes, and the system faces downward (ie, the ground). At this time, the gravity of _g is measured on the z-axis (because it is opposite to the positive direction of the z-axis) To the 'definite value,' as shown in the third figure. Conversely, if the casing (1) is turned horizontally (10) horizontally so that the second panel (10) faces upwards - downward, the z-axis turns downward, and the gravity still falls on the axis, but the gravity direction is the same as the z-axis. 'The 2 axis is the measured gravity' controller (3) is based on this principle (4) is the first panel (8) or the second two = up" and then control the relay (4) so that the up-side keyboard (Π 1 or 121) is The enabled state, the other side (4) is the dissipative state of the reverse phase. For the sake of the fourth and fifth figures, it is the L-range diagram of the azimuth discriminator of the present invention. First, the gravity component (2) is obtained from the gravity sensor (2), and the gravity component value (10) is obtained, that is, the x-axis component gx is the weight of the seat. According to the size of the 2-axis component, the :: factory and 2-axis component generation-stage discrimination result (S2), when 8 200933152 4 component is greater than 1 § or less than Shi (S2a, absolute .f value is greater than W (four)睬 (-, tear side two states 'do not change, the (four) a first critical value, because the gravity component of any - axis in the stationary 'from I' is not greater than 匕 or less than *, large: k - lg means The handheld device is in motion, at this time the user threshold - the theoretical value, is not: = work: above: ❺ 14, the range can be selected as the critical value, i 5g is particularly preferred. Although the Z-axis component is smaller than -G.5g and equated to the first -: (coffee)' discriminates as the first azimuth state (S4a), that is, the first =; the first: = the - is upward, if the shape shown in the third figure is 1, ) upwards when the z-axis component is less than or equal to the first critical value and greater than G.5g (S2d), the second orientation energy is determined, (=, ie, opposite to the first orientation state) , the other side 10 up, 〇 = the state of the state, that is, the second panel (12) is up. And when the z axis is less than or equal to 0.5g and greater than or equal to _05g value gamma), that is, 2 axes and 2 quantities ^ Negative (S3) Ay-axis component size (S31, as the discrimination according to f: the second stage is judged, when the z-axis component is negative (10)), and 7 = 罝 is less than or equal to - the second critical value is greater than ❿ Side C), judged as the first-azimuth state (_, the same as the first critical value mentioned above, the second product boundary value is greater than or equal to lg, 12 § is optional, from 1 to 1; when the z-axis The component is a negative value (10)), and the axis component is less than -〇·· and is equal to the negative value of the second threshold (pass), and is determined to be the second orientation L (S4b). When the z-axis component is positive The value (S3Y) 'and the ^ axis component is less than 200933152 is equal to the positive value of the second critical value and is greater than 〇.5g (S32c), and is determined as the first azimuth state (10)) · The axial component is positive (10)), and is at 0 When '5g is greater than or equal to the negative value of the second critical value (s coffee) is the first azimuth state (S4a). The other axis is (10) a, S32a), including the z-axis component equal to 〇, then 2 is not 睬 (S4c) The dryness N is 〇π. The above-mentioned discriminating method of the present invention can obtain the discriminating result through the triaxial component of gravity, and it is extremely simple, and it is extremely simple, and the time required for shortening the discriminating can be reduced. The need for the performance of the microprocessor, as described above, is merely a preferred embodiment of the present invention, and is not specifically used in the scope of the patent of the present invention, and other equivalent transformations using the spirit of the present invention. All of them should belong to the patent scope of the present invention. [Simple description of the drawings] The first figure: a schematic view of the appearance of a handheld device with a double-sided keyboard configuration. Figure 2: Circuit diagram of the handheld device shown in the first figure. Second figure: Schematic diagram of the direction discrimination of the present invention. Fourth figure: Flow chart of the discriminating method of the present invention. Fig. 5 is a flow chart showing the method of discriminating the present invention. [Main component symbol description] b··Handheld device la···First system 200933152
lb…第二系統 11…第一面板 12…第二面板 111···第一鍵盤 121…第二鍵盤 2…重力感測器 3…控制器 4…繼電器 41a，41b…控制端 42a，42b…開關 43…反相器 S1〜S4…步驟Lb...second system 11...first panel 12...second panel 111···first keyboard 121...second keyboard 2...gravity sensor 3...controller 4...relay 41a,41b...control end 42a, 42b... Switch 43...inverters S1~S4...steps
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