ELECTROMAGNETIC GUIDE SYSTEM FOR TRAVEL VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic guide system which precisely detects a net stop point buried in the middle of a guide line without being affected by the depth of the guide line buried in the ground. SOLUTION: Base voltage is variably set by the moving average value of the detected voltage average value of right/left guide sensors SL and SR in a travel vehicle A. When the detected voltages of both guide sensors SL and SR exceed the base voltage and there is no difference in both detected voltages, a net stop timer is started and the travel vehicle A is stopped when it passes net stop passage setting time.