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EP0328796A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

System for transmitting information between automatically guided vehicles and ground control systems by means of electromagnetic induction

Assignee: FATA Automation SpA
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Filing: 1988-12-14
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Granted: —
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Expires: 2008-12-14
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Abstract

Abstract A system for transmitting coded information between an automatically guided vehicle (AGV) of the type that follows a conductor embedded in the flooring and a ground control system. The said system of communication comprises a loop disposed in the flooring in a position along the route followed by the said AGV and an antenna disposed on the lower surface of the said AGV so that communication takes place when the said antenna comes to be on the vertical of the said loop and thus when an inductive connection between them is established.

Inventors

  • 👤 Gaetano Di Rosa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 23:32
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/021; G05D1/0259; G05D1/0265

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 124 words
1) Remote control communication system of the type permitting a bidirectional communication of codes between a steering system aboard an automatically guided vehicle (AGV) that follows a pre-established route marked out by means of a conductor cable embedded in the flooring and detected by sensors on the AGV, and a ground control system, wherein there are comprised a plurality of inductive ground loops each connected to a first transmission/reception device connected to the said ground control system and an antenna disposed on the said AGV comprising a second transmission/reception device connected to the said steering system to realize an inductive coupling between a loop of the said plurality of loops and the said antenna when they come to be at the minimum reciprocal distance.
Claim 2
Dependent Claim 124 words
1) Remote control communication system of the type permitting a bidirectional communication of codes between a steering system aboard an automatically guided vehicle (AGV) that follows a pre-established route marked out by means of a conductor cable embedded in the flooring and detected by sensors on the AGV, and a ground control system, wherein there are comprised a plurality of inductive ground loops each connected to a first transmission/reception device connected to the said ground control system and an antenna disposed on the said AGV comprising a second transmission/reception device connected to the said steering system to realize an inductive coupling between a loop of the said plurality of loops and the said antenna when they come to be at the minimum reciprocal distance.
Claim 3
Dependent Claim 64 words
2) Remote control communication system as described in claim 1, wherein the said codes are transmitted from the said loop to the said antenna and from the said antenna to the said loop by the emission by the said first transmission/reception device and by the said second transmission/reception device of an amplitude-modulated carrier frequency where a different modulation is associated with each transmissible code.
Claim 4
Dependent Claim 37 words
3) Remote control communication system as described in claim 2, wherein the said emission between the said loop and the said antenna can take place simultaneously with the emission between tha said antenna and the said loop.
Claim 5
Dependent Claim 33 words
4) Remote control communication system as described in claim 1, wherein the said inductive loop is disposed in the flooring on which the said AGV travels and proximally to the said conductor cable.
Claim 6
Dependent Claim 47 words
5) Remote control communication system as described in claim 4, wherein the said antenna is disposed on the said AGV proximally to the flooring and in such a position as to be on the vertical of the said loop when the said AGV passes in its vicinity.

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