Digital data processing system with asynchronous sensing units

Details Digital data processing system with asynchronous sensing units Digital data processing system with asynchronous sensing units

1981-03-25

1983-11-15

Ruggiero, Joseph F.

Boots, shoes, and leggings

34082506, 364139, 364184, 364492, G06F 1546, G05B 2102

Patent

active

044159684

ABSTRACT:
A digital data processing system in which system parameters in an electric power system such as current or voltage are sampled at predetermined time intervals and converted into digital data by analog-to-digital converter units. The sampling frequency is made higher than the expected frequency of variation of these parameters. Sensing units located remotely from one another sample these parameters at rates which are asynchronous between sensing units. The data transmitted from the various sensing units is sent to a central processing unit where the received signals are sampled synchronously and then processed in order to provide protection for the electric power system.

REFERENCES:
patent: 3976981 (1976-08-01), Bowden
patent: 4190823 (1980-02-01), Leichle
patent: 4277832 (1981-07-01), Wong
patent: 4308585 (1981-12-01), Jordan

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