Communication method in movable body operating system

Details Communication method in movable body operating system Communication method in movable body operating system

1997-04-16

1999-03-23

Wu, David J.

Communications: electrical

Systems

Selsyn type

34031001, 34031007, 104297, 191 33R, 191 50, 246 4, H04M 1104

Patent

active

058866191

ABSTRACT:
In an operating system for a movable body that runs on a guide rail, a communication method is described that establishes communications between the movable body and an operation control unit for controlling running of the movable body. Power lines on which electric power is transmitted are laid on the guide rail. The movable body is runnable upon reception of the electric power from the power lines. The method includes the steps of (a) generating a communication signal in either the movable body or the operation control unit; (b) superimposing the communication signal on electric power to be transmitted on the power lines; (c) receiving the electric power with the superimposed communication signal at the other of the movable body or the operation control unit; and (d) acquiring the communication signal from the received electric power.

REFERENCES:
patent: 3714419 (1973-01-01), Fosse et al.
patent: 3794833 (1974-02-01), Blazek et al.
patent: 4905605 (1990-03-01), Shishido et al.
patent: 5142277 (1992-08-01), Yaberry et al.
patent: 5289778 (1994-03-01), Romine

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