Intersection detecting system for unattended carrier

Abstract

Abstract PURPOSE:To serve with only a pair of filters, and to reduce the number of parts, by switching the constant of the filter by a command from a ground station. CONSTITUTION:A cross guide line to cross the guide line in running currently is detected by using plural different frequencies at every, guide line, commanding the frequency of the guide line to be detected at the next from the ground station, and switching the constant of the filter in an unattended carrier vehicle. The ground station always recognizes the position of the unattended vehicle, and decides which cross guide line should be detected, and to which cross guide line it should turn, and issues the command of the frequency of the cross guide line to be discriminated at the next time to the unattended carrier vehicle. A processor 11 detects the command from a pickup coil 21, and recrives a command signal through an amplifier 22, a filter 23, a demodulation circuit 24, a serial/parallel converter 25, and a bus 10. When the command signal being received, a switching signal is outputted to switching circuits 6a, and 6b.

Inventors

• 👤 Etsuo Yamazaki
• 👤 山崎　悦男

Bibliographic Details