201028649 六、發明說明： 【發明所屬之技術領域】 本發明涉及導航領域，尤:Μ：涞s 法 ”涉及一種導航裝置及其方 【先前技術】 隨著經濟的發展，道路上汽車越來越多，道路也越來 ，錯綜複雜。為了能夠在陌生的地方儘快地找到目的地， 人們都會購買一個導航裝置來為自己指路。 地圖航Ϊ置所提供的地圓非常清楚，但當前顯示的 關扣：的方向和汽車面向方向（行進方向）的 關^還疋需要駕驶員去思考—下，要是地圖正上方所指 好與汽車面向方向相反，駕歇員就有可能把往 左心的看成是往右拐’從科致錯誤行驶。 =所示’汽車1〇的車頭面向地理方 方，此時導航裝置30顯示的地圖4〇的正上 方，即駕駛員眼前的實際道路妝 為正北 所示’當圖1中的汽車1〇因為拐·彎 而：-疋角度後，面向著東北方向，但傳 3二顯示的地圖40仍然是上方為北方。 = 的實際道路狀況和導航以30顯示的道路狀況不貝= :，若要理解導航裝置30顯示的導航訊息，： ==向轉換。在駕._較快的時S i ;是左哪J二=時間來判斷方向和思考 等致&驶貢分心，很容易發生走錯路 3 201028649 ' 的問題，甚至導致交通事故。 * 【發明内容】 鑒於此，有必要提供一種能提供更便於駕駛員理解的 導航地圖的導航裝置。 還有必要提供一種能提供更便於駕駛員理解的導航 地圖的導航方法。 一種導航裝置包括：定位訊號接收器、定位單元、存 儲器、處理器和顯示單元，該定位訊號接收器用於接收無 線定位訊號；該定位單元用於根據定位訊號接收器接收的 定位訊號計算出導航裝置當前的位置訊息；該存儲器用於 存儲地圖數據；該處理器用於根據存儲器中的地圖數據在 顯示單元上顯示地圖，並根據定位單元得到的位置訊息平 移顯示的地圖，該導航裝置還包括旋轉檢測器，用於檢測 導航裝置的偏轉角度和偏轉方向；該處理器還用於以該偏 轉方向相反的方向將顯示單元上顯示的地圖旋轉轉與角 Q 度訊息相同的度數。 一種導航裝置的導航方法，包括如下步驟： 讀取地圖數據並顯示； 接收定位訊號並根據定位訊號得到當前位置訊息； 檢測當前導航裝置偏轉訊息，包括偏轉角度和偏轉方 向； 以該偏轉方向相―反的方向將地圖旋轉轉與角度訊息 相同的度數； 根據位置訊息平移顯示的地圖。 4 201028649 ' 藉由在導航裝置中集成旋轉檢測器來檢測汽車（即導 • 航裝置）的拐彎訊息，以控制汽車面向方向（導航裝置背 向方向）與顯示的地圖的上方所指示的方向保持一定的角 度關係，使得地圖隨時更換成最適合駕駛員理解的角度， 減少走錯路的情況以及交通事故的發生。 【實施方式】 請參閱圖3 ’導航裝置1〇〇包括：定位訊號接收器1〇2、 定位單元104、存儲器106、旋轉檢測器1〇8、處理器110和 ®顯示單元112。 定位訊號接收器102用於接收無線定位訊號，如GPS， GPRS定位訊號。 定位單元104用於根據定位訊號接收器1〇2接收的定 位訊號計算出導航裝置1〇〇當前的位置訊息，通常為經緯 座標訊息。 存儲器106用於存儲地圖數據。 Ο 旋轉檢測器108用於即時檢測導航裝置1〇〇的偏轉角 ，和偏轉方向。檢測導航裝置100的偏轉也就相當於檢測 汽車的旋轉，所述旋轉檢測器108可以是加速度感應器， 其藉由檢測導航裝置100拐彎時產生的離心力的大小，維 持時間以及方向得到偏轉角度和偏轉方向訊息。所逃旋轉 檢測,8還可以是電子指南針，電子指南針是利用磁場 感測器來測I微弱的地球磁場，得到東南西北的方向訊 息’並計算出偏轉角度和偏轉方向訊息。採用電子指南針 的好處在於’就算是在靜止的情況下都能準破地檢測出導 5 201028649 航裝置100或者汽車10的面向方向。 • 處理器110用於根據存儲器106中的地圖數據在顯示 單元112上顯示地圖，並根據定位單元1〇4得到的位置訊息 平移顯示的地圖和顯示位置標誌，還根據所述偏轉角度和 偏轉方向訊息旋轉顯示單元上112顯示的地圖，包括以所 述偏轉方向相反的方向將地圖旋轉與角度訊息相同的度 數0 清一併參考圖6 ’在所述旋轉檢測器1〇8採用的是加速 度感應器時候’若初始狀態下（如：導航裝置·剛打開 地圖時）顯示的地圖漏上方所指示的方向（即導航裝置 100的顯示幕的上方對應其顯示的地圖所指的方向）與汽 車10面向方向相差—個預設角度。之後，無論汽車10如何 拐彎’二者仍_㈣角度差’若用戶需要保持兩個方向 的-致，可以在初始狀態下，將地圖咖上㈣指示的方 向手動調節到與汽車10面向方向—致。 在所述旎轉檢測器⑽採用的是電子指南針的時候， 初始狀態下顯$單元112的地圖上方所指示的方向與電子 指南針感應到的導航.裳置100背向方向-致，即與汽車面 向方向-致，因為汽車中的導航裝置_面向的方向與汽 車面向的方向相反以此*夠讓駕故員看到顯示單元112上 顯示的地圖。 請參閱圖4，汽車10從面向地理方向2G的正北方向 “右”拐幫，達别面向東=方向的狀態，此時導航装置1〇〇 顯示的地圖4〇〇肖左”旋轉了同樣的角度。此時的實際 6 201028649 道路中，駕駛員的左前方為地理方向20的北方，顯示的地 * 圖400的左上方所指示的方向也為地圖400的北方。如此， 駕駛員眼前的道路狀況與導航裝置100顯示的地圖400完 全相符，駕駛員很容易就能看出自己所處的位置以及需要 行進的方向。 如圖5所示，圖4所示的汽車10繼續向“右”拐，達到 面向正東方的狀態。駕駛員的左邊則為地理方向20的正北 方。此時導航裝置100顯示的地圖400的左邊所指示的方向 ® 為地圖400的正北方。請進一步參閱圖6和圖7，其相對於 圖4和圖5的區別在於將字母形式的地圖400換成了實際道 路50的圖形500，其中還顯示有汽車10的位置標誌60，以 便於理解地圖的旋轉情況。 請參閱圖8，一較佳實施方式的導航方法，包括如下 步驟： 步驟S301，讀取地圖數據並顯示。 Q 步驟S303，接收定位訊號並根據定位訊號得到當前位 置訊息。 步驟S305，利用加速度感應器或電子指南針即時檢測 當前導航裝置（或車輛）偏轉訊息，包括偏轉角度和偏轉 方向。 步驟S307，根據該偏轉訊息旋轉地圖，包括以所述偏 轉方向相反的方向將地圖旋轉轉與角度訊息相同的度數。 步驟S309，根據位置訊息平移地圖並根據位置訊息顯 示當前位置標誌。 7 201028649 * 上述導航裝置和方法藉由集成加速度感應器或電子 * 指南針等旋轉檢測器，使得汽車面向方向與顯示的地圖上 方所指示的方向保持一致，即顯示的地圖的正上方所指示 的方向就是駕跌員面向方向。這樣，不管駕驶員怎麼拐 彎，地圖都隨時更換成最適合駕駛員理解的角度，減少走 錯路的情況以及交通事故的發生。 【圖式簡單說明】 圖1~2為傳統導航裝置在汽車轉變方向時的地圖顯示 ®方式示意圖。 圖3為一較佳實施方式的導航裝置功能模組圖。 圖4~7為圖3所示的導航裝置在汽車轉變方向時的地 圖顯不方式不意圖。 圖8為一較佳實施方式的導航裝置的導航方法步驟流 程圖。 【主要元件符號說明】 汽車 10 定位單元 104 地理方向 20 存儲器 106 導航裝置 30、100 旋轉檢測器 108 地圖 40、 400 、 500 處理器 110 定位訊號接收器 102 顯示單元 112 導航方法步驟流程S301〜S309 8201028649 VI. Description of the invention: [Technical field of invention] The present invention relates to the field of navigation, in particular: Μ: 涞s method relates to a navigation device and its method [Prior Art] With the development of the economy, cars on the road are more and more More, the roads are getting more and more complicated. In order to find a destination in a strange place as soon as possible, people will buy a navigation device to guide themselves. The map circle provided by the map is very clear, but the current display is off. The direction of the buckle: the direction of the car and the direction of the car (the direction of travel) also requires the driver to think about it. If the map is directly above the direction of the car, the driver can look at the left heart. Cheng is turning to the right's driving from the wrong direction. = The head of the car 1 is facing the geographic side. At this time, the map displayed by the navigation device 30 is directly above the front, that is, the actual road makeup in front of the driver is positive. North shows 'When the car 1 in Figure 1 is turned and bent: -疋 angle, facing the northeast, but the map 40 shown in the 3nd is still above the north. Road conditions and navigation road conditions displayed at 30 are not: =, to understand the navigation message displayed by the navigation device 30: == direction conversion. When driving. _ faster, S i; is left, J 2 = time To judge the direction and thinking, etc., it is easy to get the wrong way 3 201028649 ', and even lead to traffic accidents. * [Invention] In view of this, it is necessary to provide a more convenient driver understanding. Navigation device for navigation map. It is also necessary to provide a navigation method capable of providing a navigation map that is more convenient for the driver to understand. A navigation device includes: a positioning signal receiver, a positioning unit, a memory, a processor and a display unit, the positioning signal The receiver is configured to receive a wireless positioning signal; the positioning unit is configured to calculate a current location information of the navigation device according to the positioning signal received by the positioning signal receiver; the memory is configured to store map data; and the processor is configured to use the map data according to the memory Displaying a map on the display unit and panning the displayed map according to the location information obtained by the positioning unit, the navigation device The setting further includes a rotation detector for detecting a deflection angle and a deflection direction of the navigation device; the processor is further configured to rotate the map displayed on the display unit to the same degree of the angular Q degree message in a direction opposite to the deflection direction. A navigation method for a navigation device, comprising the steps of: reading map data and displaying; receiving a positioning signal and obtaining a current position message according to the positioning signal; detecting a current navigation device deflection message, including a deflection angle and a deflection direction; The opposite direction rotates the map to the same degree as the angle message; pans the displayed map according to the positional message. 4 201028649 ' By detecting the turning information of the car (ie, the navigation device) by integrating the rotation detector in the navigation device, Control the direction of the car (the direction of the navigation device's back direction) to maintain a certain angular relationship with the direction indicated above the displayed map, so that the map can be replaced at any time to the angle that is most suitable for the driver to understand, to reduce the wrong way and traffic accidents. occur. [Embodiment] Referring to FIG. 3, the navigation device 1 includes a positioning signal receiver 1, a positioning unit 104, a memory 106, a rotation detector 1, 8 , a processor 110, and a display unit 112. The positioning signal receiver 102 is configured to receive a wireless positioning signal, such as a GPS, GPRS positioning signal. The locating unit 104 is configured to calculate, according to the positioning signal received by the positioning signal receiver 1 〇 2, the current location information of the navigation device 1 , usually a latitude and longitude coordinate message. The memory 106 is used to store map data.旋转 The rotation detector 108 is used to instantly detect the deflection angle of the navigation device 1 and the deflection direction. Detecting the deflection of the navigation device 100 is equivalent to detecting the rotation of the car. The rotation detector 108 may be an acceleration sensor that detects the magnitude of the centrifugal force generated when the navigation device 100 turns, maintains the time and direction, and obtains the deflection angle and Deflection direction message. Escaped rotation detection, 8 can also be an electronic compass, which uses a magnetic field sensor to measure the weak Earth's magnetic field, obtain the direction information of the southeast and northwest, and calculate the deflection angle and deflection direction information. The advantage of using an electronic compass is that it can detect the orientation of the aircraft 100 or the car 10 even if it is stationary. The processor 110 is configured to display a map on the display unit 112 according to the map data in the memory 106, and translate the displayed map and the display position flag according to the position information obtained by the positioning unit 1〇4, according to the deflection angle and the deflection direction. The map displayed on the information display unit 112 includes a degree 0 in which the map is rotated in the opposite direction of the yaw direction and the same angle as the angle information. Referring to FIG. 6, the acceleration sensor is used in the rotation detector 1 〇 8 When the device is in the initial state (eg, when the navigation device is just opened), the direction indicated above the map leak (ie, the upper side of the display screen of the navigation device 100 corresponds to the direction indicated by the map displayed) and the car 10 Face-to-face difference - a preset angle. After that, no matter how the car 10 turns 'the two are still _ (four) angle difference' if the user needs to maintain the two directions - in the initial state, the direction indicated on the map coffee (4) can be manually adjusted to face the direction of the car 10 - To. When the twirling detector (10) adopts an electronic compass, the direction indicated by the top of the unit 112 is displayed in the initial state and the navigation sensed by the electronic compass is set to 100, and the direction is opposite, that is, with the car. Direction-oriented, because the direction of the navigation device in the car is opposite to the direction in which the car is facing, so that the driver can see the map displayed on the display unit 112. Referring to FIG. 4, the car 10 turns "right" from the north direction facing the geographic direction 2G, and the state of the east side is oriented toward the east=direction. At this time, the map displayed by the navigation device 1〇〇 is rotated by the same The angle of the actual 6 201028649 road at this time, the left front of the driver is the north of the geographic direction 20, the direction indicated by the top left of the map 400 is also the north of the map 400. Thus, the driver's eyes The road condition is completely consistent with the map 400 displayed by the navigation device 100, and the driver can easily see where he is and the direction in which he needs to travel. As shown in Fig. 5, the car 10 shown in Fig. 4 continues to the "right". Turning to the state facing the east. The left side of the driver is the north of the geographic direction 20. At this time, the direction indicated by the left side of the map 400 displayed by the navigation device 100 is the north of the map 400. Please refer to FIG. 6 further. And FIG. 7, which differs from FIG. 4 and FIG. 5 in that the map 400 in letter form is replaced with the graphic 500 of the actual road 50, wherein the position mark 60 of the automobile 10 is also displayed to facilitate understanding of the rotation of the map. Referring to FIG. 8, a navigation method according to a preferred embodiment includes the following steps: Step S301: Read map data and display it. Q Step S303: Receive a positioning signal and obtain a current location message according to the positioning signal. Step S305: The acceleration sensor or the electronic compass instantly detects the current navigation device (or vehicle) deflection information, including the deflection angle and the deflection direction. Step S307, rotating the map according to the deflection information, including rotating the map in an opposite direction to the deflection direction The message is the same degree. Step S309, panning the map according to the location message and displaying the current location flag according to the location information. 7 201028649 * The above navigation device and method make the car face orientation by integrating an acceleration sensor or a rotation detector such as an electronic * compass The direction indicated above the displayed map remains the same, that is, the direction indicated directly above the displayed map is the direction of the driver. This way, regardless of how the driver turns, the map is replaced at any time to the angle that is most suitable for the driver to understand. Reduce the wrong way The situation and the occurrence of traffic accidents. [Simplified illustration of the drawings] Figures 1 to 2 are schematic diagrams of the map display® mode of the conventional navigation device in the direction of the vehicle transition. Fig. 3 is a functional block diagram of the navigation device according to a preferred embodiment. 4~7 is a schematic diagram of the navigation mode of the navigation device shown in Fig. 3 in the direction of the vehicle transition. Fig. 8 is a flow chart showing the steps of the navigation method of the navigation device according to a preferred embodiment. [Description of main component symbols] Positioning unit 104 Geographical direction 20 Memory 106 Navigation device 30, 100 Rotation detector 108 Map 40, 400, 500 Processor 110 Positioning signal receiver 102 Display unit 112 Navigation method Steps S301~S309 8