文章對具有自主知識產(chǎn)權(quán)且成本低廉的磁傳感器的設(shè)計原理、實驗條件和信號特性進(jìn)行了分析, 其中信號特性包括測試精度、重復(fù)性及穩(wěn)定性。以該磁傳感器為感知元件, 基于對其信號特性的認(rèn)識, 根據(jù)模糊控制原理設(shè)計的車道追蹤控制器實現(xiàn)了基于磁道釘導(dǎo)航的智能公路車道追蹤控制任務(wù), 并且控制精度達(dá)到了既定要求。實車試驗結(jié)果表明, 該磁傳感器是可用的, 作者對其信號特性的認(rèn)識是正確的。
關(guān)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