200940958 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種行車位詈雜％备 、 干m罝辨識糸統及方法，詳而 吕之，一種以導航訊號之載口喿比作為莫介古 邛马導航兩度判斷依據的 行車位置辨識系統及方法。 【先前技術】 目前車用道路導航設備大都具有道路定位功能盘道 路導航功能。道路定位功能是利用全球衛星定位^統 ©(Global Positioning System ; GPS)加上慣性導航裝置 (方位偵測器與車速偵測器）即時計算車輛所在位置座 標，並將此位置座標與所儲存的道路資料庫内的道路資料 比對，進而計算出車輛目前所行駛的道路與實際位置·'首 路導航功能是供使用者設定-出發地與—目的地，而後= 用最佳-路徑選擇演算法來求出兩點間最快到達的路徑，泛 稱『建議行車频』。其後，道料㈣料域此工建議 ◎行車路徑及道路定位的功能，隨時記錄車輛行進路徑並對 使用者提示前方轉彎路口及轉彎方向。此外，道路導航功 能亦隨時監視車輛是否沿建議行車路徑行駛。 然’現行之車載GPS導航系統發送之訊號載脅比 (CN，Carrier/Noise)不可避免地極易受建築物折射以 及隧道、高架橋等遮蓋物遮蔽而影響，尤其是現行之車载 GPS導航系統之高度參數的精確度還令人不甚滿意，比 如車輛行駛到具有高架橋的路段時，由於高架橋上的道 路與高架橋下的道路上下層叠’在地理位置上屬於同—路 110619 5 200940958 ^此時車載GPS導航系統（即導綠體）就 車輛是行敬在高架橋上還是高架橋下，進而 ：：： 判並給出錯誤的行車路線建議，反 時間方可抵達目的地。 更用者而化費更多 是故，如何開發一種能夠準確定位車 時給予正確引導之導航技術，以提升車载Gp 度參數的準確度，確實節省使用者之行車時間，實 技術領域中’亟待解決之問題。 ❹【發明内容】 為解決上述習知技術種種之缺失，本發明之一目的在 於提供厂種行車位置辨識系統及方法，以解決習知導抗軟 體難以準確辨識行車位置之缺失。 為達上述目的及其他目的，本發明即揭露一種行車位 置-辨識純及方法’本發明之行車位置賴系統係應用 於具有接收全球衛星定位系統（G1〇bai ρ〇Μ〇η 摘測模組、-崎模組、—處理模組、以及一提示 模組。該設定模組係用以設定—該電子裝置接收導航訊號 之載噪比之難並Μ儲存；該_模組係用以侦測該電 子裝置接收導航訊號之載軌；該比對模組係依據該設定 模組設定之閥值與該偵測模組則貞測到的载噪比進行比 對，並於該㈣比小於該閥值時，輸出—探測訊號；該處 理模組係接㈣該比對模组輸出之探測訊號後，發射一高 〇system;GPS)所傳送之導航訊號之電子裝置中且該電子 裝置安裝有導航軟體，該行車位置辨識系統包括一設定模 110619 6 200940958 度探測訊號以探測該電子裝置之上方預定探測距離内是 否：有障礙物，若是，則輸出第一提示訊號；該提示模組 糸收到該第-提示訊號後令該導航軟體提示行車位置。 *本發明之行車位置辨識系統的另一實施例包括：偵測 模=，係用以偵測該電子裳置接收導航訊號之載噪比；、比 對板組，係比對出該偵測模組所偵測到的載劈比逐漸變小 時輸出探測戒號，處理模組，係接收到該比對模組輸 出之才木測訊號後，發射一高度探測訊號以探測該電子裝置 ❹ί上T預定探測距_是否具有障礙物，若是，則輸出-第一提不訊號；以及提示模組，係接收到該第一提示訊號 後，令該導航軟體提示行車位置。 7 卜本發明之行車位置辨識方法係應用於具有接收全球 衛星疋位系統（Global Position System;GPS)所傳送之 導航訊號之電子裝置中，且該·電子裝置安裝有導航軟體， 該行車位置辨識方法係包括以下步驟，首先設定一該電子 ❹裝置接收之導航訊號之載噪比之闊值並予以儲存；接著偵 测該電子裝置接收導航訊號之載噪比；以及依據該設定之 閥值與該偵測之載噪比進行比對，並於該載噪比小於該閥 值時，探測該電子裝置之上方預定探測距離内是否具有障 礙物’以在具有障礙物時令該導航軟體提示行車位置。 本發明之行車位置辨識方法另一實施例中係包括以 下步驟：偵測該電子裝置接收導航訊號之載噪比；以及比 對所偵測到的載噪比逐漸變小時，探測該電子裝置之上方 預定探測距離内是否具有障礙物，若是，則令該導航軟體 110619 7 200940958 提示行車位置。 導航本…行車位置辨識系統及方法係透過 ㈠作為導航高度之參考依據，藉以解決先 刖V航技術中難以準確辨識行車位置 【實施方式】 天。 以下係藉由特定之1辨_ .^ ^ , 之具體貝例說明本發明之實施方 式，热悉此技藝之人士可由太 ^ . 說月曰所揭示之内容輕易地 瞭解本毛明之其他優點與功效。 — 忒本發明亦可精由其他不同 ❹之具體貫例加以實施或應用太 计 乂應用，本說明書中之各項細節亦可 基於不同觀點與應用，在不㈣本發明之精神下進行各種 修飾與變更。 如第1圖所不，其係用以顯示本發明之行車位置辨識 系統之基本架構方塊示意圖。 如圖所示’本發明之行車位置辨識系統10係應用於-具有全球衛星定位系統…Qbal PQsitiQning System， ❹GPS )接收器π之電子裝£ 1中，且該電子裝置工安裝有 導f軟體，藉由該全球衛星定位系統接收器11以接收全 球衛星定位系統100所傳送之導航訊號於本實施例中， 該电子裝置10僅以車用全球衛星定位系統導航裝置為例 4明’亦即’本發明之電子裝置1係可為具有Gps導航功 能之個人數位助理、行動電話、智慧型手機、或筆記型電 腦等裝置。 该行車位置辨識系統1 〇包括設定模組1 〇丨、偵測模 組102、比對模組103、處理模組丨〇4、以及提示模組丨〇5。 8 110619 200940958 該設定模組101係用以設定該電子裝置1之全球衛星 定位系統接收器11接收之導航訊號之載噪比之閥值。於 本實施例中，該電子裝置1接收該導航訊號之載噪比 (Carr ier/Noise; CN )不可避免地受行車環境影響而變 化，即，g車輛行驶至開闊區域（〇pen sky )的環境時， 該導航訊號之載噪比通常比較高，當車輛行駛至城市街道 或局架橋下的地段時，受建築物折射以及高架橋等遮蓋物 遮蔽而影響，該導航訊號之載噪比通常比較低，故於本實 ❹施例中，所設定的導航訊號之載噪比之閥值係經由複數次 數據採集及統計獲得。 該偵測模組102係用以偵測該電子裝置1接收導航訊 號之載噪比〇 該比對模組103係依據該設定模組1〇1所設定之閥值 與該偵測模組102所偵測的載噪比進行比對，並於該載噪 比小於該閥值時，輸出一探測訊號。該處理模組1〇4係接 收到該比對模組103輸出之探測訊號後，發射一高度探測 ❹ 訊號以探測該電子裝置1之上方狀探測距離内是否具 有障礙物’若是’則輸出第—提示訊號’並傳送至該提示 模組1G5時，以令該提示模Μ阳提示該行車位置係為高 架橋下；反之，若否’則表示該行車位置係為高架橋下， 具體而言，該提示模組1G5用以與導航軟體溝通，以供導 =體判斷出駕敬者是否行敬於所規劃的行驶路線令的 1橋上或高架橋下，藉此增加判斷駕歇者行駛於高架橋 下或南架橋上的正確性。 110619 9 200940958 • - 另一實施例中’於該載噪比大於該闕值時，輪出第二 1()ΓΓ=並傳送至該提示模組iG5時，以令該提示模組 導航軟體提不該行車位置係為高架橋上。 _，本實施例中，該處理模組復1G4包括—發射/接收 ▲以及判斷單元104卜該發射/接收單元咖係 探測訊號以及用以接收該高度探測訊號遇 被反射之返回訊號；該判斷單元讀係用以判斷 〜發射/接收單it觸是否接收到該電子裝£1之上 ©疋距離内之返回訊號1是，則輸出該第—提示訊號，若 否’則輸出第二提示訊號。於本實施例中，該第一提示訊 ^送至該提示模組1G5時’該提示模組1G5令該導航軟 曰:該行車位置係為高架橋下；該第二提示訊號傳送至 該，不模組時1G5,該提示模組1G5令該導航軟體提示該 仃車位置之上方’無障礙物’例如行敬於高架橋上·。該電子 裝置之上方預定探測距離係為5至1〇米然並不偈限於 此’於不同行車環境中’該電子裝置之上方預定探測 亦可更高或更低。 提示模組105係接收到該提示訊號後令該導航軟體 提示行車位置。 就前述實施例而言，其係預先對載噪比分布定義出一 閥值，以依實際所偵測到的載噪值與該閥值進行比對，作 為導航高度之判斷依據。除此之外，本發明之行車位置辨 識裝置的另-實施例中’可不須設定該閥值，而是藉由該 比對模組103比對該債測模組1〇2所债測到的載噪比是否/ 110619 10 200940958200940958 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a system for locating and noisy, and a method for identifying a dry m罝, and a method for using the navigation signal as a navigation signal. The driving position identification system and method based on the two-degree judgment of Mo Jiegu. [Prior Art] At present, most road navigation devices for vehicles have road navigation function road navigation functions. The road positioning function uses the Global Positioning System (GPS) plus inertial navigation device (azimuth detector and vehicle speed detector) to instantly calculate the coordinates of the vehicle's location, and coordinates the location and the stored coordinates. The road data in the road database is compared to calculate the current road and actual position of the vehicle. 'The first navigation function is for the user to set - the departure place and the destination, and then = the best - path selection calculation The method is to find the fastest arriving path between two points, which is generally called "recommended driving frequency". Afterwards, the material (4) material field suggested ◎ driving path and road positioning function, record the vehicle travel path at any time and remind the user of the front turn and the turning direction. In addition, the road navigation function monitors the vehicle at any time along the recommended driving path. However, the signal-to-ship ratio (CN, Carrier/Noise) sent by the current car GPS navigation system is inevitably highly susceptible to building refraction and obstruction of tunnels, viaducts, etc., especially the current car GPS navigation system. The accuracy of the height parameter is also unsatisfactory. For example, when the vehicle travels to a section with a viaduct, the road on the viaduct and the road under the viaduct are stacked one on top of the other. The geographical position is the same road 110619 5 200940958 ^This When the vehicle GPS navigation system (ie, the green body) is on the viaduct or under the viaduct, then::: Give the wrong driving route advice, and then arrive at the destination in reverse time. More users are more expensive, how to develop a navigation technology that can correctly position the car to give correct guidance, to improve the accuracy of the vehicle Gp parameter, and indeed save the user's driving time, in the field of technology Urgent problems to be solved. SUMMARY OF THE INVENTION In order to solve the above-mentioned various deficiencies of the prior art, it is an object of the present invention to provide a plant position recognition system and method for solving the problem that the conventional impedance is difficult to accurately recognize the driving position. In order to achieve the above and other objects, the present invention discloses a driving position-identification and method. The driving position system of the present invention is applied to a receiving global satellite positioning system (G1〇bai ρ〇Μ〇η , -Saki module, processing module, and a prompt module. The setting module is used to set - the electronic device receives the navigation signal and the carrier-to-noise ratio is difficult to store; the module is used to detect Measuring the carrier of the navigation signal by the electronic device; the comparison module is compared according to the measured carrier-to-noise ratio of the threshold set by the setting module, and the ratio is less than the (four) ratio At the threshold, the output-detection signal is connected to the electronic device that transmits the navigation signal transmitted by the system (GPS) and the electronic device is installed after the detection module outputs (4) the detection signal output by the comparison module. a navigation software, the driving position recognition system includes a setting mode 110619 6 200940958 degree detection signal to detect whether there is an obstacle in the predetermined detection distance above the electronic device, and if yes, outputting the first prompt signal; Shito module receives the first - to make the navigation software prompts the traffic signal location when prompted. * Another embodiment of the driving position recognition system of the present invention includes: detecting mode = for detecting the carrier-to-noise ratio of the electronic skirt receiving the navigation signal; and comparing the board groups, comparing the detection The module detects that the load-carrying ratio is gradually decreasing, and outputs a detection ring. The processing module receives the wood signal signal output by the comparison module, and then transmits a height detection signal to detect the electronic device. T predetermined detection distance _ whether there is an obstacle, if yes, the output - the first no signal; and the prompt module, after receiving the first prompt signal, the navigation software prompts the driving position. 7 The driving position identification method of the present invention is applied to an electronic device having a navigation signal transmitted by a Global Position System (GPS), and the electronic device is equipped with a navigation software, and the driving position is identified. The method includes the following steps: first setting a threshold value of a carrier signal received by the electronic device and storing it; then detecting a carrier-to-noise ratio of the electronic device receiving the navigation signal; and determining a threshold according to the setting Comparing the detected carrier-to-noise ratio, and detecting whether there is an obstacle within the predetermined detection distance above the electronic device when the carrier-to-noise ratio is less than the threshold value, so that the navigation software prompts driving when there is an obstacle position. In another embodiment of the driving position identification method of the present invention, the method includes the following steps: detecting a carrier-to-noise ratio of the electronic device receiving the navigation signal; and detecting that the detected carrier-to-noise ratio is gradually decreasing, detecting the electronic device Whether there is an obstacle in the predetermined detection distance above, and if so, the navigation software 110619 7 200940958 prompts the driving position. The navigation system...the driving position identification system and method are based on (1) as the reference basis for the navigation height, so as to solve the problem that it is difficult to accurately identify the driving position in the V-aviation technology. In the following, the embodiment of the present invention is described by a specific example of a specific example, and those skilled in the art can easily understand the other advantages of the present by the contents disclosed by Yue. efficacy. - The present invention may also be implemented by other specific embodiments of the invention or applied to the application. The details in this specification may also be based on different viewpoints and applications, and various modifications may be made without the spirit of the present invention. With changes. As shown in Fig. 1, it is a block diagram showing the basic architecture of the driving position recognition system of the present invention. As shown in the figure, the driving position identification system 10 of the present invention is applied to an electronic device having a global satellite positioning system (Qbal PQsitiQning System, ❹GPS) receiver π, and the electronic device is equipped with a derivative software. The global satellite positioning system receiver 11 receives the navigation signal transmitted by the global satellite positioning system 100. In the embodiment, the electronic device 10 uses only the GPS global navigation system navigation device as an example. The electronic device 1 of the present invention can be a device such as a personal digital assistant with a GPS navigation function, a mobile phone, a smart phone, or a notebook computer. The driving position recognition system 1 includes a setting module 1 侦测, a detecting module 102, a matching module 103, a processing module 丨〇4, and a prompting module 丨〇5. 8 110619 200940958 The setting module 101 is configured to set a threshold of a carrier-to-noise ratio of a navigation signal received by the global satellite positioning system receiver 11 of the electronic device 1. In this embodiment, the carrier-to-noise ratio (Carr ier/Noise; CN) of the electronic device 1 received by the electronic device 1 is inevitably changed by the driving environment, that is, the g vehicle travels to the open area (〇pen sky). In the environment, the carrier signal ratio of the navigation signal is usually relatively high. When the vehicle travels to a section under a city street or a bridge, it is affected by the reflection of the building and the cover of the viaduct. The carrier-to-noise ratio of the navigation signal is usually compared. Low, in this embodiment, the threshold of the carrier-to-noise ratio of the set navigation signal is obtained through multiple data acquisition and statistics. The detection module 102 is configured to detect the carrier-to-noise ratio of the navigation signal received by the electronic device 1. The comparison module 103 is based on the threshold set by the setting module 101 and the detection module 102. The detected carrier-to-noise ratio is compared, and a detection signal is output when the carrier-to-noise ratio is less than the threshold. After receiving the detection signal output by the comparison module 103, the processing module 1〇4 transmits a height detection signal to detect whether there is an obstacle in the upper detection distance of the electronic device 1 if the image is output. - when the prompt signal is transmitted to the prompting module 1G5, so that the prompting mode indicates that the driving position is under the viaduct; if not, it means that the driving position is under the viaduct, specifically, the The prompting module 1G5 is used for communicating with the navigation software, so that the guiding body can determine whether the driver respects the bridge or the viaduct under the planned driving route, thereby increasing the judgment of the driver to drive under the viaduct or The correctness on the south bridge. 110619 9 200940958 - - In another embodiment, when the carrier-to-noise ratio is greater than the threshold, the second 1 () ΓΓ = is transmitted and transmitted to the prompt module iG5, so that the prompt module navigation software is provided The driving position should not be on the viaduct. In the embodiment, the processing module complex 1G4 includes a transmitting/receiving ▲ and a determining unit 104, the transmitting/receiving unit, and a return signal for receiving the height detecting signal, which is reflected; The unit reading system is used to determine whether the transmitting/receiving single-touch is received by the electronic device. The return signal 1 is within the distance of 1, and the first prompt signal is output. If not, the second prompt signal is output. . In this embodiment, when the first prompt message is sent to the prompting module 1G5, the prompting module 1G5 makes the navigation soft: the driving position is under the viaduct; the second prompt signal is transmitted to the When the module is 1G5, the prompting module 1G5 causes the navigation software to prompt the 'barrier-free' above the braking position, for example, on the viaduct. The predetermined detection distance above the electronic device is 5 to 1 〇. However, it is not limited to this. In a different driving environment, the predetermined detection above the electronic device may be higher or lower. The prompting module 105 receives the prompt signal and causes the navigation software to prompt the driving position. For the foregoing embodiment, a threshold value is defined in advance for the carrier-to-noise ratio distribution to compare the detected carrier noise value with the threshold value as a basis for judging the navigation height. In addition, in another embodiment of the driving position identification device of the present invention, the threshold value may not be set, but the comparison module 103 is compared to the debt testing module 1〇2. Is the carrier-to-noise ratio / 110619 10 200940958
I 逐漸變小’若逐漸變小且 電子裝置！之上方預定二亥處理模組104探測出該 行車所在位置為高架橋下。 4障械物’則表示該 再者，舉例而言，如箆？ _ 經平面道政A访亚 弟圖所不，其用以說明車輛行 U平面道路與高架道路交又 架道路C時所偵測到的載噪值之變化，地=該面 路A路段削貞測到的载噪比（CN)㈣，；= 與尚架道路交又處到的载噪比為Μ，於^架 ❹之路C路段所债測到的載噪比為3〇，由此可知由：該 =道路C屬於開闊區域（Qpensky)的 導= 訊號之載噪比通常比較高，當車輛⑽至平面道2 與高㈣路交又處時，衛星訊號W㈣物折射或 遮=等影響’而使載噪比降低，且當載噪比逐漸增加則表 不車輛的行進路線是由平面道路行駛至高架道路（即高架 橋上）’相反的’當載蜂比逐漸變小則表示車輪的行進路 0線是由高架道路（即高架橋上）行駛至平面道路，且此時， 右探測出該車輛上方的預定探測距離内具有障礙物，則表 不邊仃車所在位置為高架道路下方（即高架橋下）。 如第3圖所示，其係顯示本發明之行車位置辨識方 之流程示意圖。 〆 如第3圖所示，首先執行步驟S1，設定該電子裝置 接收導航訊號之載噪比之閥值。於本實施例中，該電子裝 置透過内建的全球衛星定位系統接收器接收衛星所傳^ 之導航訊號，而該導航訊號之載噪比不可避免地受行車環 110619 11 200940958I gradually becomes smaller 'if it gets smaller and the electronic device! Above it, the second processing module 104 is scheduled to detect that the driving position is under the viaduct. 4 obstacles' means that the other, for example, such as 箆? _ Through the plane administration A visit to the younger brother map, it is used to explain the change of the carrier noise value detected when the U-plane road and the elevated road cross the road C, the ground = the section A section of the road The measured carrier-to-noise ratio (CN) (4),; = the carrier-to-noise ratio of the road with the Shangjiao road is Μ, and the carrier-to-noise ratio measured by the debt of the road section of the road is 3〇, It can be seen that: the road C belongs to the open area (Qpensky). The signal-to-noise ratio of the signal is usually relatively high. When the vehicle (10) to the plane 2 and the high (four) road are crossed again, the satellite signal W (four) is refracted or covered = The influence is reduced, and the carrier-to-noise ratio is lowered. When the carrier-to-noise ratio is gradually increased, the travel route of the vehicle is from the flat road to the elevated road (ie, on the viaduct). The opposite is when the bee ratio becomes smaller. The traveling line 0 of the wheel travels from the elevated road (ie, on the viaduct) to the flat road, and at this time, the right side detects that there is an obstacle within the predetermined detection distance above the vehicle, and the position of the vehicle is the elevated road. Below (ie under the viaduct). As shown in Fig. 3, it is a schematic flow chart showing the driving position recognition method of the present invention. 〆 As shown in Fig. 3, step S1 is first executed to set the threshold of the carrier-to-noise ratio of the electronic device to receive the navigation signal. In this embodiment, the electronic device receives the navigation signal transmitted by the satellite through the built-in global satellite positioning system receiver, and the carrier-to-noise ratio of the navigation signal is inevitably affected by the driving ring. 110619 11 200940958
I 境影響而變化’即，當車輛行駛至開闊區域的環境時，該 導航訊號之載噪比通常比較高’當車輛行駛至城市衔道5 高架橋下的地段時’受建築物影響’該導航訊號之载$1匕 通常比較低’故於本實施例中’所設定的導航訊號之S噪 比之閥值係經由複數次數據採集及統計獲得，接著進至+ 驟S2。 ’夕 於該步驟S2中’積測該電子裝置所接收之導航訊號 之載噪比，接著進至步驟S3。 ❹於該步驟S3中，依據該設定之閥值與該備測之載噪 比進行比對，接著進至步驟S4。 於該步驟S4中，判斷該偵測之載噪比是否小於該閥 值，若是，則進至步驟S5;若否，則進至步驟S7/ μ % 於步驟S5中，探測該電子裝置之上方預定探測距離 内是否具有障礙物’若是’則至步驟S6;若否，則至步 驟S7;於本實施例中，該電子裝置之上方預定探測距離 〇係為5至1G米、然並不侷限於此，於不同行車環境中， 該電子裝置之上方預定探測距離亦可更高或更低。於本本 施例中，探測該電子裝置之上方預定探測距離内是否且二 障礙物的方式係藉由發射高度探測訊號，並接收該高度探 測訊號遇障礙物被反射之返回訊號，則表示該電子 上方具有障礙物。 & 於步驟S6中，提示行車位置之上方具有障礙物，例 如行駛於高架橋下，即可結束本發明之行車位置辨識 的處理步驟。 110619 12 200940958 =步驟S7中’提示行車位置之上方未有障礙物，例 的處丁 = ^橋上，即可結束本發明之行車位置辨識方法 的另行車位置辨識方法 只e歹'中，可省略前述實施例所述之步驟S1至 :而改以比對所_到的载噪比是否逐漸變小，若逐漸 义，則進至步驟S5 ;若未逐漸變小，則進至步驟S7。 β預先所^本發明之仃車位置辨識系統及方法係透過 訊號載噪比之間值;而後，依據該設定之 :值與制之載噪比進行比對，並於該载噪比小於該闕值 :’探測該電子裝置之上方預定探測距離内是否具有陸礙 提示訊號予以提示行車位置，亦即，當導航軟體 所規劃㈣行料線中具有高架橋與平面道路重疊的路 ^本透過本發明之行車位置辨識.系統及方法可自動侧 駕駛者？否行駛於導航軟體所規劃的行駛路線中的高架 》橋上或高架橋下的平面道路，提供導航高度參數之判斷， 藉以增加判斷駕敬者行歇於平面道路或高架橋上的正確 性^此，應用本發明可克服f知技術之前述諸多缺點， 而具高度產業利用價值及進步性。 ▲上述實施例僅為例示性說明本發明之原理及其功 效，而非用於限制本發明。任何熟習此項技藝之人士均可 在不違背本發明之精神及範嘴下’對上述實施例進行修飾 與變化。因此，本發明之權利保護範圍，應如後述 專利範圍所列。 110619 13 200940958 【圖式簡單説明】 第1圖係顯不本發明之并击a m ^ 乃之仃車位置辨識系統之基本架 構方塊示意圖； 第2圖係顯示車辆行經平面道 •=路交又處及該高架道路時所___== 第3圖係顯示本發明之行車位 意圖。 辨識方法之流程示 1 10 1〇〇 101 102 103 1〇4 1〇4〇 1041 105 S1 0【主要元件符號說明】 電子裝置 行車位置辨識系統 全球衛星定位系統 設定模組 偵測模組 比對模組 0X Ui± 處理模組 發射/接收單元 判斷單元 提示模組 S7 步驟 110619 14I change the influence of the environment', that is, when the vehicle travels to the environment of the open area, the carrier signal ratio of the navigation signal is usually higher. 'When the vehicle travels to the section under the viaduct of the city road 5, it is affected by the building. The signal load $1匕 is usually relatively low. Therefore, the threshold of the S-signal ratio of the navigation signal set in the present embodiment is obtained through multiple data acquisition and statistics, and then proceeds to +step S2. In the step S2, the carrier-to-noise ratio of the navigation signal received by the electronic device is accumulated, and then proceeds to step S3. In step S3, the threshold value is compared with the prepared carrier-to-noise ratio, and then proceeds to step S4. In step S4, it is determined whether the detected carrier-to-noise ratio is less than the threshold, and if so, proceeds to step S5; if not, proceeds to step S7/μ% in step S5 to detect the upper portion of the electronic device If there is an obstacle in the predetermined detection distance, if it is, then go to step S6; if not, go to step S7; in this embodiment, the predetermined detection distance above the electronic device is 5 to 1 Gm, but it is not limited. Here, in different driving environments, the predetermined detection distance above the electronic device may be higher or lower. In the present embodiment, detecting whether the two obstacles are within a predetermined detection distance above the electronic device is by transmitting a height detection signal and receiving a return signal that the height detection signal is reflected by the obstacle, indicating the electronic There are obstacles on the top. & In step S6, it is indicated that there is an obstacle above the driving position, for example, driving under the viaduct, the processing steps of the driving position recognition of the present invention can be ended. 110619 12 200940958=In step S7, there is no obstacle above the driving position. For example, if the vehicle is on the bridge, the vehicle position identification method of the driving position identification method of the present invention can be ended only in e歹', and can be omitted. In step S1 to the above-mentioned embodiment, it is changed whether the carrier-to-noise ratio obtained by the comparison is gradually decreased. If it is gradually changed, the process proceeds to step S5; if it is not gradually decreased, the process proceeds to step S7. The pre-existing brake position recognition system and method of the present invention transmits the signal-to-noise ratio between the signals; and then, based on the set value: the value is compared with the carrier-to-noise ratio, and the carrier-to-noise ratio is less than Depreciation: 'Detecting whether there is an obstacle warning signal within the predetermined detection distance above the electronic device to indicate the driving position, that is, when the navigation software is planned (4), there is a road in which the viaduct overlaps with the plane road. Invented driving position identification. System and method can automatically side driver? Whether it is driving on the elevated bridge in the driving route planned by the navigation software or the plane road under the viaduct, providing the judgment of the navigation height parameter, so as to increase the correctness of judging the respect of the driver on the plane road or the viaduct. The invention can overcome the aforementioned shortcomings of the prior art, and has high industrial utilization value and progress. The above-described embodiments are merely illustrative of the principles and advantages of the invention and are not intended to limit the invention. Modifications and variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the following patent scope. 110619 13 200940958 [Simple description of the diagram] The first diagram shows the basic architecture block diagram of the vehicle position identification system of the invention. The second diagram shows the vehicle passing through the plane road. At the time of the elevated road ___== Figure 3 shows the intention of the parking space of the present invention. The flow of the identification method is shown as 1 10 1〇〇101 102 103 1〇4 1〇4〇1041 105 S1 0 [Description of main component symbols] Electronic device driving position identification system Global positioning system setting module detection module comparison module Group 0X Ui± Processing Module Transmitting/Receiving Unit Judging Unit Prompt Module S7 Step 110619 14