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Sequence inversion keyed countdown timer utilized within a utility meter system
Sequence inversion keyed countdown timer utilized within a utility meter system
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机译:公用事业仪表系统中使用的序列反转键控倒数计时器
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摘要
An automatic meter reading system that includes a head end controller and an endpoint that is interfaced to a utility meter. The head end controller and the endpoint communicate via RF communication. The endpoint includes an internal clock that synchronizes itself to a clock countdown signal. The clock countdown signal is generated by the head end controller through use of sequence inversion keying.
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