無線人物追蹤與障礙偵測系統之研發

Development of Wireless User-Tracking and Obstacle-Detecting System

周學逸(Xue-Yi Zhou)

指導教授 ： 余政杰

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00319

摘要

此論文研究主要分為兩個部份，一是感測器與微控器之間的信號接收與信號處理，二是透過Wi-Fi將資料傳至電腦端進行追蹤定位。
由1.5425 GHz GPS (Global Positioning System)模組接收美國國家海洋電子學會(NMEA)所制定的標準規格，包括了資料的格式及傳輸資料的通訊協定，並擷取時間、經緯度座標、方向、速度等資訊。使用超音波模組，來進行障礙偵測，並計算障礙物之距離，透過蜂鳴器來提醒使用者。此方面是學習感測器與微控器之間的通訊傳輸介面的設定與操作，並將資料擷取至暫存器。
在演算法部分研究利用GPS資料進行演算與轉換，將經緯度座標轉換成距離以及方向，減少使用方向感測器以及重力感測器之成本，並轉換時間與座標的格式使正確在電腦端顯示。除對所有演算轉換流程詳加學習、分析與討論，並使用PIC24精簡C語言指令予以實現，以增進整體數位無線收發系統之安全性。
在使用者追蹤部份，透過微控器設定2.4 GHz Wi-Fi收發模組並與電腦端同時連結至無線接取器（Access point）實現資料的傳輸，並架設資料庫與Google Map伺服器，將資料顯示在Google Map地圖上讓電腦端可以追蹤使用者的位置。
最後，於開放空間測試整體數位無線收發系統之通訊可靠度與準確性。

關鍵字

微控器 ； Wi-Fi ； GPS ； 超音波 ； 座標距離演算法 ； 資料庫 ； Google Map

並列摘要

This thesis partitions mainly into two parts, one is the sensor and microcontroller receiving and signal processing and the other is signal between two through Wi-Fi, the data was transmitted to the computer terminal through tracing.
By 1.5425 GHz GPS (Global Positioning System) module receives USA Society National Marine Electronics (NMEA) Standard Specification for the format and transmission of data, including data communication protocol, and extraction time, latitude and longitude, direction, speed and other information. The use of ultrasonic module, for obstacle detection, and calculate the distance of obstacles, through the buzzer to alert the user. This is the study of sensor and micro control communication interface between the setup and operation, and the data acquisition to the register.
In the part of algorithm for routing and switching by using GPS data, the latitude and longitude coordinates into the distance and direction to reduce the use of directional sensor and gravity sensor cost, and the conversion time and coordinate the correct format in computer terminal display. In addition to the all - calculus transformation process a detailed analysis and discussion, learning, and use the PIC24 to streamline the C language instruction is implemented, to improve the overall
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security of digital wireless transceiver system.
In the user tracking part, through a set of 2.4 GHz Wi-Fi transceiver module and the computer terminal simultaneously connected to wireless access microcontroller (Access point) to realize the transmission of data, and set up a database with Google Map server, the data is displayed in the Google Map to computer terminal tracking the user's location.
Finally, the communication in the open space to test the overall digital wireless transceiver system reliability and accuracy.

並列關鍵字

Microcontroller ； WiFi ； GPS ； Ultrasonic ； Coordinate distance algorithm ； Database ； Google Map

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