Apparatus for guiding a trackless vehicle

Details Apparatus for guiding a trackless vehicle Apparatus for guiding a trackless vehicle

1984-09-24

1986-03-18

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

364436, 180168, B64C 1318

Patent

active

045771405

ABSTRACT:
Apparatus for guiding a trackless vehicle along an A.C. conductor marking a roadway, having at least two sensors to detect a magnetic field emanating from the current conductor the output signals of which are routed to interpretive electronics. The interpretive electronics include a phase-locked loop (PPL) the input signal to which is the output signal of one of the sensors, and the output signal of which is used for demodulation, by mixers, of the sensor signals.

REFERENCES:
patent: 4247896 (1981-01-01), Schnaibel
patent: 4258813 (1981-03-01), Rubel
patent: 4300020 (1981-11-01), Toyomaki

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