文章對具有自主知識產權且成本低廉的磁傳感器的設計原理、實驗條件和信號特性進行了分析, 其中信號特性包括測試精度、重復性及穩定性。以該磁傳感器為感知元件, 基于對其信號特性的認識, 根據模糊控制原理設計的車道追蹤控制器實現了基于磁道釘導航的智能公路車道追蹤控制任務, 并且控制精度達到了既定要求。實車試驗結果表明, 該磁傳感器是可用的, 作者對其信號特性的認識是正確的。
關鍵詞　磁傳感器　智能公路　車道追蹤
Abstract: Th is paper analyses the design theo ry, experimental condit ion and signal characters of a low 2co st magnet ic senso r,w h ich has been developed by N at ional center of ITS Engineering & Techno logy (NC ITSET ) , and is ow ned by R IOH. It began the study of lane2fo llow ing on in2 telligent h ighw ayw ith magnet icmarkers embedded along the centerline of lane roadw ay in O ctober 2000. NC ITSET has go t nat ional patent of th is senso r. Such characterist ics of the signal from the senso r as measuring p recision, reappearing po ssibility and stability are invest igated in th is paper. U sing the developed senso r as detect ing device, a softw are cont ro ller w ith acco rdance to fuzzy cont ro l theo ry has accomp lished the task of mak ing a samp le veh icle run in the p rescribed lane on the intelligent h ighw ay. In the meant ime, its result has also reached the p recision requirements. Experiment result show s that no t only the developed senso r is p ract ical but w hat found here about
the characterist ics of signal from the senso r is also co rrect.
Keywords: magnet ic senso r; intelligent h ighw ay; lane2fo llow ing