Utility usage data and event data acquisition system

Details Utility usage data and event data acquisition system Utility usage data and event data acquisition system

1984-12-10

1987-11-17

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

34087003, H04M 1100, G08C 1900

Patent

active

047078529

ABSTRACT:
A utility usage data and event data acquisition system effective to acquire input serial data messages representing the amount of consumed utility services and/or binary event data from one or several external sources having differing drive signal requirements, the system also being effective to reformat the input data and append an identification code and an error detection code to the acquired data, and thereafter transmit messages comprising the identification code, the acquired data, the error detection code and other control information to a central location through the agency of coaxial cables, public switched telephone networks or other transmission facilities utilizing data terminals which accept serial binary messages at logic level voltages. Data message transmission is initiated either at random times by an algorithm within the control program of a microprocessor incorporated in the system or from an externally applied command signal.

REFERENCES:
patent: 3114900 (1963-12-01), Anderson
patent: 3688271 (1972-08-01), Rouse
patent: 3820073 (1974-06-01), Vercellotti et al.
patent: 4132981 (1979-01-01), White
patent: 4315251 (1982-02-01), Robinson et al.

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