超音波定位系統裝置位置與誤差之關聯

Relationship between the Detecting Deviations and the Sensor Arrangements in an Ultrasonic Positioning System

盧樹台(Shuh-Tai Lu)

《高雄師大學報：自然科學與科技類》 22期 (2007/06) Pp. 71-83

https://doi.org/10.7060/KNUJST.200706.0071

摘要

本論文提出一種超音波導盲系統，此超音波導盲系統包含三個超音波接收器及一個超音波發射器，可以計算出凌空障礙物的座標位置，以協助盲胞做凌空障礙物的感測與預警。三個超音波接收器分別被安置在一個直角等腰三角形的三個頂點，超音波發射器則被放置在直角等腰三角形的直角。本論文對同一個超音波導盲系統，探討兩種不同位置的安排，並以盲人頭部前方1至2公尺、±15度的範圍為測試區，比較該兩種不同位置安排的定位誤差，以作為後續實作系統之參考。

關鍵字

超音波定位系統 ； 誤差分析

並列摘要

An ultrasonic positioning system is introduced in this paper. With the help of the system the blind can get early warning of where the obstacle is. The system has three ultrasonic sensors and an ultrasonic emitter. The sensors are located at different apexes of a right triangle. The ultrasonic emitter is arranged at the right angle of the right triangle. This paper discusses two different device position arrangements and their positioning deviations for the same positioning system. An area of ±15°, 1 meter to 2 meters in front of the sensors is used as a test area for the two different arrangements. Some simulation results and conclusions are also given in this paper.

並列關鍵字

ultrasonic positioning system ； deviation analysis

參考文獻

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