RF meter reading system

Details RF meter reading system RF meter reading system

2011-05-24

2011-05-24

Hunnings, Travis R (Department: 2612)

Communications: electrical

Continuously variable indicating

With meter reading

C379S106030, C379S106060, C379S106070, C340S870030

Reexamination Certificate

active

07948396

ABSTRACT:
A meter reading system of the present invention enables transmission of data between utility meter endpoints and readers. In a first embodiment, the endpoint provides a short message providing its identification to the reader and immediately enters a listen mode. If the reader hears the short message, it can immediately respond and request additional information from the endpoint. If the reader does not hear the short message or does not request additional information during the endpoints listening period, the endpoint enters a sleep mode until its next transmission time. In another embodiment, the endpoint transmits an SCM via AM communication to the reader. The reader can then request additional information and the endpoint can respond with the information via two-way FM communication. In another embodiment, the endpoint is capable of transmitting interval data to the reader via either AM or FM communication.

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