如果妳說的是JP08-050511（妳這個專利號有點不全呀）的話，是日本的專利，英文摘要如下：
(11)Publication?number?:08-050511
(43)Date?of?publication?of?application?:20.02.1996
(51)Int.Cl.G05D?1/02
A01B?69/00 (21)Application?number?:06-184337(71)Applicant?:KUBOTA?CORP(22)Date?of?filing?:05.08.1994(72)Inventor?:FUJII?YASUO?IRIE?YASUO?YAMANAKA?YUKIFUMI?YOKOYAMA?YUKIO
GUIDING?DEVICE?FOR?MOVING?VEHICLE
Abstract:
PURPOSE:?To?provide?a?guiding?device?for?moving?vehicle?with?which?the?structure?of?a?guide?line?can?be?simplified?and?the?labor?of?installation?can?be?reduced?and?completed?at?low?cost?by?composing?a?closed?circuit?for?a?current?supplied?from?a?current?source?of?the?guide?line?and?a?closed?circuit?passing?underground.?
CONSTITUTION:?A?magnetic?field?is?formed?by?supplying?an?AC?current?to?a?guide?line?3,?and?the?traveling?of?a?moving?vehicle?is?automatically?controlled?along?plural?traveling?courses?by?an?electromagnetic?induction?system.?Then,?each?guide?line?3?is?supported?by?a?supporting?part?5?with?one?terminal?connected?to?a?metal?resistor?4?driven?into?the?ground?G?in?a?conducted?state?and?the?other?terminal?is?supported?by?an?insulated?support?5?and?installed?by?the?metal?resistor?4?and?the?supporting?part?5.?Moreover,?another?metal?resistor?6?driven?into?the?ground?G?is?provided?on?the?other?end?side?of?the?guide?line?3,?one?connecting?terminal?8?of?a?current?supplying?device?7?provided?corresponding?to?each?guide?line?3?is?connected?to?the?other?terminal?of?the?guide?line?3,?and?the?other?metal?resistor?6?is?connected?to?another?connecting?terminal?9.?Therefore,?the?current?supplied?from?the?current?supplying?device?7?flows?through?the?guide?line?3?and?the?ground?G.