초록 ▼

A plug-in “universal”information display module for use in an information display system, e.g. a train describer system, of the kind in which all information to be displayed is multiplexed onto a data highway routed to all display locations. The heart of the module is a microprocessor which “listens

A plug-in “universal”information display module for use in an information display system, e.g. a train describer system, of the kind in which all information to be displayed is multiplexed onto a data highway routed to all display locations. The heart of the module is a microprocessor which “listens”to the multiplexed messages on the data highway, selects for decoding only those containing the address of its location and produces a decoded message in the form of a two-dimensional matrix display format suitable for scanning to drive an L.E.D. matrix display panel. An address programming means is connected to an address input to the microprocessor so that a module is normally programmed with a location address at the time of connection to the data highway either by a manual operation or automatically upon mating of the plug connector.

대표청구항 ▼

An information display system comprising a mimic diagram having a plurality of locations for the selective display of information, each said location having a unique address code, multiplex data transmission means linking said locations to information supply means arranged to supply multiplexed mess

An information display system comprising a mimic diagram having a plurality of locations for the selective display of information, each said location having a unique address code, multiplex data transmission means linking said locations to information supply means arranged to supply multiplexed messages consisting of an address code portion and a message portion, a connector socket mounted in the diagram at each said location, a plurality of interchangable standard plug-in display module assemblies each comprising a connector plug for mating with any one of the connector sockets, said plug being connected to address comparison means for, responsive to a correct address, gating a message information portion through information gating means to information decoding means connected to drive information display means, each module assembly further including an address programming means which is settable to provide the correct address to said comparison means corresponding to that allocated to the particular location at which the module assembly is plugged-in.