I273359_c/c 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種校正時間的方法，且特別是有關 於一種利用衛星信號中所附帶之格林威治時間與經緯度資 料來自動修正電子裝置之時間的方法。 【先前技術】I273359_c/c IX. INSTRUCTIONS: [Technical Field] The present invention relates to a method for correcting time, and more particularly to a method for automatically correcting electrons using GMT and latitude and longitude data attached to a satellite signal The method of time of the device. [Prior Art]
全球喊星定位系統（Global Positioning System，GPS) 是由美國政府所發展，整個系統約分成下列三個部份： 1·太空衛星部份：由24顆繞極衛星所組成，分成六 個軌道，運行於約20200公里的高空，繞行地球一周約 12小％。每個衛星均持續著發射載有衛星軌道資料及時間 的無線電:^提供地球上的各雖㈣來躺。 2·地面管制部份：這是為了追蹤及控制上述衛星運 轉i =置的地面管制站，主要卫作為負責修正與維護每 個衛生能保持正常運轉的各項來^ = ^ 只，敎貝村，以確保母個衛星 都4供正確的牧給使用者接收機來接收。 3·使用者接收機··追縱戶斤右五 算出接收機所在位置的座標、二並即時地計 GPS早期侷限於軍事單 ι度及4間。 如戰機、船般、車輛、人員 ’、目的針對軍事用途，例 時至今曰，GPS已開放給民物的精確度定位等。 空衛星與通訊技術的科技， ，、、、疋=使用，這項結合太 了能提供精確的定位之外， 間市場已蓬勃的展開，除 亦能準確的提供訊息，的範寺間、方向及距離 们靶圍相當廣泛，我們一般民 !273359 l540ltwf.doc/c 間擁有及應用的，就是第三部份。計算原理為：每個 太工衛生在運行日可，任一時刻都有一個座標值來代表其位 ，，在（已知值），接收機所在的位置座標為未知值，而太 空衛星的訊息在傳送過程中，所需耗費的時間，可經由比 =衛星時鐘與接收機内的時鐘計算之，將此時間差值乘以 電波傳送速度（一般定為光速），就可計算出太空衛星與使 用者接收機間的距離，如此就可依三角向量關係來列出一 個相關的方程式。 一般我們使用的接收機就是依上述原理來計算出所在 位置的座標資料，每接收到一顆衛星就可列出一個相關的 方程式，因此在至少收到三衛星後，即可計算出平面▲標 (經緯度）值，收到四顆則加上高程值，五顆以上更可提高 準確度’這就是GPS的基本定位原理。一般來說，使用4 接收機每一秒鐘的座標資料都是最新的，也就是說接收機 會自動不斷地接收衛星訊息，並即時地計算其所在位置的 座，資料，如此使用者便不需擔心是否接收機顯示的資料 太舊或是不準確了。 、 然而現代科技日新月異’隨身攜帶行動通訊袋置已是 稀鬆平常的事，因為飛行或旅遊常常往來不同的時區，使 用行動裝置上的時間常常需要人手動校正為所在地時間， 或疋其它如商務活動需往來不同地區時，若其裝置的時間 仍停留在本地時間，則會造成困擾或誤會，且人生地不熟， 各地民情風俗不一，不論問人或上網查詢都是一件麻煩的 事在—般的PDA或是其它通訊產品中，雖然裳有gps麥 6 1273359 15401twf.doc/c 置但是並沒有用在更新系統時 它方法取得想要的時間。 七级使用者通要利用其 【發明内容】 方法本以衛星定位校正時間之 本發明提供—種以衛星定位校正時間之方法 先接收—魅定位信號。其次，電子裝置將對衛〆曰 疋位信號作解碼，並自衛星定位信號丨#生 間資料與一所在位置資料 口二 °林威治時 所在料作計算，並得=在:Γ治時間資料與 依知本發明的較佳實施例所述，上述之對衛办 號作解碼包括騎星粒錢作放大。 5 依照本發明的較佳實施例所述， 號作解碼包括濾除衛星定位錢中之雜訊。生疋錄 一依照本發㈣較佳實施·述，上叙以 =所在位置f料作計算之步驟包括根據触位ϊ ί :哥找相對應之袼林威治時區，然後根據所尋找;之林； 威治=對格_铺料刪，以得 依妝本發明的較佳實施例所述，上 包括經緯度資料。 所在位置貧料 治時間與經 緯度資料作計算，因此電子裝置可以自^地 本發明因採用自所接收到之衛星定位信號取出格林威 更 1273359 15401twf.doc/c 新為其所在位置之精確時間，而且不需再上網對時或人工 對時。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文鱗較佳實施例，並配合所_式，作詳細說 明如下。 【實施方式】 請芩照圖1，其係繪示依照本發明一較佳實施例的— 種以衛星定位校正時間之方法的步概糊。此方法之步 驟係為適餘具有GPS之電子裝置，而此電子裝置可以例 如是筆記型電腦(Note Book，簡稱NB)、手持式掌上型電 腦(Handheld PC HPC)、智慧行動電鄉咖 ph〇ne)% 個人數位助理(Personal Digital Assistam，簡稱 p 口 電腦(Pocket PC)，但均不以此為限。 在本實施财，此綠的步驟為當細者啟動電子裝 置後’由於此電子裳置為具有GPS之設備，因此，電子 置將會接㈣GPS衛星傳來之衛星定健號（s搬)。、 (s:4著，：：裝置會對所接收到之衛星定位信號作解碼 θ七4 ) °，、中，對衛星定健號作解碼之動作可以例如 疋匕括以電子裝置中之低噪音 · ，關LNA)將衛星定位信號放大27犯，並經 卞值ΐ舰職、_音，雜再將上述處理之衛星信 號傳运至電子裝置之中央處理單元。 接著，中央處理單元則自衛星定位信 斤 治時間資料與所在地位置資料（S106)。在^本實施财威 ltwf.doc/c 僅以美國國家海洋電子協會(Nati〇nal Marine mectr〇nics Association，NMEA)所制定的標準規格為例作說明。 此衛星定位信號之格式為NMEA格式。而NMEA格 式所傳的資料是架構在美國國家標準資訊交換碼 (American Standard Code for Information Interchange, ASCII)之上’它是以傳輸句子(Sentence)的方式傳輸資料， 每一個句子以「$」當作開頭，而以十進位控制碼「1〇」、 13」為、、、ς 止（即 ASCII 中的 Line Feed 碼和 Carriage Return 碼），句子長度不定，最長可達82個字元(Character)。 句子中的欄位(Field)以逗號「，」分隔，第二、三個 子元為傳輸設備的識別碼，例如「Gp」為GPS接收器， 「LC」為 Loran-C 接收器，「〇M」為 〇mega Navigation 接收器等等。第四、五、六個字元為要傳輸的句子名稱， 例如GGA」為全球定位糸統固定資料(Gi〇|3ai positi〇ning System Fix Data)、「RMC」為全球定位系統建議的最小傳 輸資料（Recommended Minimum Specific GPS/TransitThe Global Positioning System (GPS) is developed by the US government. The whole system is divided into the following three parts: 1. Space satellite part: consisting of 24 circumpolar satellites, divided into six orbits. It runs at an altitude of about 20,200 kilometers, about 12% of the time around the earth. Each satellite continues to transmit radios carrying satellite orbit data and time: ^ Provides each of the four (4) lying on the earth. 2. Ground Control Section: This is to track and control the above-mentioned satellite operation i = set up the ground control station, the main guard is responsible for correcting and maintaining each health can maintain normal operation ^ = ^ only, Mube Village In order to ensure that the parent satellites are all 4 for the correct animal to the receiver to receive. 3. User Receiver··追縱户斤右五 Calculate the coordinates of the receiver's location, and calculate the GPS immediately. The GPS is limited to military singles and 4 rooms. Such as warplanes, ships, vehicles, personnel, and the purpose of military use, for example, GPS has been opened to the accuracy of the positioning of civilian objects. The technology of air satellite and communication technology, , , , , 疋 = use, this combination is too much to provide accurate positioning, the market has been vigorously expanded, in addition to accurately providing information, the direction between the temples, directions And the range of the target range is quite wide, we are the general people! 273359 l540ltwf.doc / c between the application and application, is the third part. The calculation principle is: each Taigong health can be on the running day, and there is a coordinate value to represent its position at any moment. At (known value), the position of the receiver is at an unknown value, and the space satellite information In the transmission process, the time required can be calculated by multiplying the ratio of the satellite clock and the clock in the receiver, and multiplying the time difference by the radio wave transmission speed (generally set as the speed of light) to calculate the space satellite and use. The distance between the receivers, so that a related equation can be listed according to the triangular vector relationship. Generally, the receiver we use is based on the above principle to calculate the coordinate data of the location. Each time a satellite is received, a related equation can be listed. Therefore, after receiving at least three satellites, the plane ▲ mark can be calculated. (latitude and longitude) value, four received plus elevation value, more than five can improve accuracy' This is the basic positioning principle of GPS. In general, the coordinates of the coordinates of each receiver using the 4 receivers are up-to-date, which means that the receiving machine automatically and continuously receives the satellite information, and instantly calculates the seat and data of the location, so that the user does not need Worried if the data displayed by the receiver is too old or inaccurate. However, modern technology is changing with each passing day. It is common for mobile communication bags to be carried. Because flights or travel often travel to different time zones, the time spent on mobile devices often requires manual correction to the local time, or other activities such as business activities. When you need to travel to different areas, if the time of the installation is still in the local time, it will cause trouble or misunderstanding, and the life is not familiar. The customs of different localities are different. It is a troublesome matter whether you ask people or query online. In the general PDA or other communication products, although there are gps Mai 6 1273359 15401twf.doc/c, it is not used to update the system. The seven-level user wants to use it. [Invention] The present invention provides satellite positioning correction time. The invention provides a method for correcting time by satellite positioning. Secondly, the electronic device will decode the defending position signal, and calculate from the satellite positioning signal 丨# bio-data and a location data port at the time of the 2° Linweizhi, and get = at: Zhizhi time Information and Description In accordance with a preferred embodiment of the present invention, the above-described decoding of the satellite number includes zooming in on the star. 5 In accordance with a preferred embodiment of the present invention, the decoding of the number includes filtering out the noise in the satellite positioning money. According to the preferred implementation of this (4), the steps of calculating the position of the material in the above-mentioned position include: according to the position ϊ ί : brother finds the corresponding Yulinwei time zone, and then according to the search; Lin; Weizhi = Grid_Puzzle, in accordance with the preferred embodiment of the invention, including latitude and longitude data. The position of the poor treatment time and the latitude and longitude data are calculated, so the electronic device can take the precise time of the position of the Greenway 1273359 15401twf.doc/c from the received satellite positioning signal. And no need to go online or manually. The above and other objects, features, and advantages of the present invention will become more apparent and understood. [Embodiment] Referring to Figure 1, there is shown a step-by-step method for correcting time by satellite positioning in accordance with a preferred embodiment of the present invention. The steps of the method are suitable for the electronic device with GPS, and the electronic device can be, for example, a notebook (Note Book, NB for short), a handheld handheld computer (Handheld PC HPC), and a smart mobile phone. Ne)% Personal Digital Assistant (Personal Digital Assistam, Pocket PC), but not limited to this. In this implementation, the green step is to start the electronic device after the finer Set as a device with GPS, therefore, the electronic device will connect (4) the satellite fixed number (s move) from the GPS satellite. (s: 4, :: The device will decode the received satellite positioning signal θ 7 4) °, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The satellite signal of the above processing is transmitted to the central processing unit of the electronic device. Next, the central processing unit locates the time information and the location data from the satellite (S106). In the implementation of this financial operation ltwf.doc / c only by the National Marine Electronics Association (NMEA) standard specifications set by the United States as an example. The format of this satellite positioning signal is in NMEA format. The data transmitted by the NMEA format is based on the American Standard Code for Information Interchange (ASCII). It transmits data in the form of Sentence. Each sentence is treated as "$". At the beginning, with the decimal control code "1", 13" for, ,, and (ie, Line Feed code and Carriage Return code in ASCII), the sentence length is variable, up to 82 characters (Character) . The fields in the sentence are separated by a comma "," and the second and third sub-elements are the identification codes of the transmission device. For example, "Gp" is the GPS receiver, "LC" is the Loran-C receiver, and "〇M" ” 〇 mega Navigation receiver and so on. The fourth, fifth, and sixth characters are the names of the sentences to be transmitted, such as GGA" for the global positioning system (Gi〇|3ai positi〇ning System Fix Data), and "RMC" for the minimum transmission recommended by the global positioning system. Information (Recommended Minimum Specific GPS/Transit
Data)。此衛星定位信號可以例如是： $GPRMC5 081243, A? 2447.057, N? 12059.862? E? 000.1? 054.7, 160796, 020.3, E*68 其中，$GPRMC為GPS建議的最小傳輸資料。 081243為資枓在格林威治時間八點十二分四十三秒 傳輸。 A表示接收機正在工作(Active);若在暖機中，則為 「N」。 、 12733¾ ltwf.doc/c 2447·057，Ν為北緯二十四度四十七點零五七分。 12059·862，Ε為東經一百二十度五十九點八六二分。 000.1表示在地表的時速0·1節(Knot)。 054.7表示訊號強度。 160796表示資料傳輸曰期為一九九六年七月十六曰 020·3，Ε表示目前磁偏角為向東二十點三度。 *68為檢查碼。Data). The satellite positioning signal can be, for example: $GPRMC5 081243, A? 2447.057, N? 12059.862? E? 000.1? 054.7, 160796, 020.3, E*68 where $GPRMC is the minimum transmission data recommended by GPS. 081243 was transferred at 8:12:43 GMT. A indicates that the receiver is working (Active); if it is warming up, it is "N". , 127333⁄4 ltwf.doc/c 2447·057, the latitude is 24 degrees and 47.57. 12059·862, the time is one hundred and twenty degrees, ninety-nine and eighty-six points. 000.1 indicates the speed of the surface at 0. 1 knot (Knot). 054.7 indicates the signal strength. 160796 indicates that the data transmission period is from July 16, 1996 to 020.3, which indicates that the current magnetic declination is 2:30 to the east. *68 is the check code.
因此’在步驟S106之後，中央處理單元則以所在地 位置資料（例如是經度與緯度）至電子裝置中之儲存單元 (s己憶體或讀庫）巾尋找此所在地位置資料與相對應之 時區。接著，以所找到之時區與格林威治時間“算 (S108)。如熟悉此技藝者可以輕易知曉，如果所找到之 時區係為落在台灣這個時區（GMT+G8 :⑼ 理單元則將格林威治時間資料加上8小時。 、Therefore, after step S106, the central processing unit searches for the location data and the corresponding time zone by using the location data (e.g., longitude and latitude) to the storage unit (sd memory or read library) in the electronic device. Then, calculate the time zone and Greenwich Mean Time (S108). If you are familiar with this art, you can easily know if the time zone you found is in the time zone of Taiwan (GMT+G8: (9) The time of the time is plus 8 hours.
最後’即可電抒置所在地之精 ^於可能使用者從上—個位置到下 ) ===整時_時，也會= 综上所】錯誤的情形。 法’電子裝置各;If _以侑生疋位校正時間之方 網對時或以人工對昧u此使用者不僅不需上 整後之時間係為精確的^^子u進行調整，而且其調 雖然本發明已以較佳實施例揭露如上，然其並非用以 1273359 15401twf.doc/c 限定本發明，任何熟習此技藝者， ，、 内，當可作些許之更動與潤飾，因此本“ 祀圍§視後附之申請專利範圍所界定者為準。 ”又 【圖式簡單說明】 ^ 圖1繪示依照本發明一較佳實施例的一種以衛星定位 校正時間之方法的步驟流程圖。 【主要元件符號說明】 S102〜S110 :各個流程步驟 11Finally, you can set the location of the location where the user can go from the top position to the bottom. ===When the time is _, it will also = the overall situation] the wrong situation. Method 'electronic device each; If _ to square the time correction time or artificially 昧u this user not only does not need to adjust the time to the exact ^^ sub-u adjustment, and its adjustment Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the invention to 1273359 15401 twf.doc/c, and any person skilled in the art can make some modifications and retouchings, therefore, the present invention BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] FIG. 1 is a flow chart showing the steps of a method for correcting time by satellite positioning according to a preferred embodiment of the present invention. [Main component symbol description] S102~S110: Each process step 11