Multi-master resolution of a serial bus

Details Multi-master resolution of a serial bus Multi-master resolution of a serial bus

1992-03-19

1994-02-22

Olms, Douglas W.

Communications: electrical

Continuously variable indicating

With meter reading

34082506, 370 851, 370 858, 370 859, 370 952, G05B 2302

Patent

active

052891763

ABSTRACT:
A method and apparatus for determining an overall master node for an overall communication network with a serial bus, wherein the overall communication network comprises an original communication network connected to a new communication network via a serial bus with high level data link control (HDLC) packets. The method and apparatus are especially applicable to trainline monitor systems since such systems are frequently divided up and rearranged because their associated trains are frequently divided up and rearranged. The method involves performing a series of steps in order to relinquish mastership of certain master nodes placing those master nodes in an inactive state and making a desired master node an overall master node of the resulting overall trainline monitor system, and the apparatus involves a corresponding series of means for performing these steps.

REFERENCES:
patent: 5053964 (1991-10-01), Mister et al.
patent: 5142277 (1992-08-01), Yarberry et al.

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