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US 4,231,015 AGranted
Multiple-processor digital communication system
AssigneeGeneral Atomic Company
InventorDonald C. Union
Life of this patent
Estimating the term…
Abstract
A digital communication system is disclosed for communicating among two central consoles and a plurality of local controllers, such as may be used in a radiation and monitoring system and the like. Communication occurs between each of the consoles and all of the local controllers via dual paths. Each path is independent of the other and each extends from one of the consoles to all of the local controllers from opposite directions, thereby forming a unique noncontinuous loop.
Claims1
A system for communicating among two central consoles and a plurality of local controllers, comprising:
- first and second central consoles for controlling the communication of said system, said consoles selectively issuing command messages to said controllers and for receiving response messages therefrom;
- a first two line communication path for selectively transmitting messages in both directions, said first path extending from one central console serially to and being connected to all of said plurality of controllers;
- a second two line communication path for selectively transmitting messages in both directions, said second path extending from the other console serially to and being connected to all of said plurality of controllers, the controllers being connected nearer to said first console via said first path also being connected relatively farther from said second console via said second path;
- an interconnecting communication path interconnecting said consoles;
- said first console being capable of communicating with each of said controllers via said first path an via said interconnecting path, said second console and said second path;
- said second console being capable of communicating with each of said controllers via said second path and via said interconnecting path, said first console and said first path.
3 more elements
Dependencies are inferred from the claim text.