Systems and methods of deterministic annunciation
First Claim
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1. A supervisory process comprising:
- periodically sending a first identifier from a device being supervised, the identifiers are temporally spaced apart by a predetermined period;
non-periodically sending an event message upon the occurrence of the event; and
sensing received identifiers; and
, determining if each such identifier has been received displaced in time from a prior received identifier an amount on the order of the period.
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Abstract
A method of supervising a plurality of displaced devices includes having each device emit a supervisory signal that is detectable by a designated unit. Indicia can be included indicative that an intervening message has been sent from a respective device. The designated unit can respond to missing, expected supervisory signals as well as unreceived messages.
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Citations
25 Claims
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1. A supervisory process comprising:
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periodically sending a first identifier from a device being supervised, the identifiers are temporally spaced apart by a predetermined period; non-periodically sending an event message upon the occurrence of the event; and sensing received identifiers; and
, determining if each such identifier has been received displaced in time from a prior received identifier an amount on the order of the period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a plurality of electrical units; a monitoring device where the electrical units communicate with the device via a medium; the electrical units each include circuitry to produce a plurality of indicia indicative of expected functioning of the respective unit, the indicia are coupled to the monitoring device, the electrical units also each include circuitry to produce indicia of a predetermined physical event, the indicia of the predetermined physical event coupled to the monitoring device upon occurrence of the event. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A device comprising:
- at least one ambient condition sensor;
output circuitry to periodically transmit identifiers indicative of an expected operational state and also to non-periodically transmit notice of an event detected by the at least one ambient condition sensor upon detection of the event. - View Dependent Claims (22, 23, 24, 25)
- at least one ambient condition sensor;
Specification