Relative timing mechanism for event sequencing without clock synchronization
AssigneeHome Data Source
InventorsTim Bruemmer, Rich McGillicuddy, Ryan Nicoletti
Life of this patent
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Abstract
A remote sensing system operable to collect sensor timing data comprising a central data hub for detecting the occurrence of an event and processing information about the detected event, the remote sensing system comprising a central data hub, at least one sensor having a simple clock operable to sense an event and transmit data to central data hub. By way of calculating the data transmitted by the at least one sensor, the central data hub can determine the time at which each event occurred and place a plurality of sensed events in sequence.
Claims21
A remote sensing system for detecting the occurrence of an event and processing information about the detected event, the remote sensing system comprising:
- a. at least one remote sensor including a transmitter and a sensor clock, the at least one sensor operable to transmit a message including information related to (i) the existence of a detected event and (ii) any time delay since the occurrence of the detected event;
- b. a data collection hub including a receiver and a hub clock, the data collection hub operable to receive the message transmitted from the at least one sensor and calculate a time of occurrence for the detected event based upon (i) the time the data collection hub received the message transmitted from the at least one sensor and (ii) the time delay included in the message from the at least one sensor.
A method for collecting sensor timing data comprising:
- a. sensing an event using at least one sensor;
- b. transmitting at least one message identifying the event and the time elapsed since the event;
- c. receiving said at least one message at a central data collection hub;
- and
- d. calculating a time for a sensed event by subtracting the elapsed time identified in the at least one transmitted message from the time the at least one message was received at the central data collection hub.
A method for collecting sensor timing data comprising:
- a. providing a central data collection hub having a receiver, a microprocessor, a memory, and a clock;
- b. providing at least one sensor having a transmitter;
- c. stimulating the at least one sensor;
- d. transmitting at least one message containing information about the time elapsed between stimulation of the at least one sensor and transmission of the at least one message;
- e. receiving the at least one message by the central data hub;
- and
- f. calculating the time of stimulation of the at least one sensor by subtracting the time elapsed between stimulation from a time provided by the clock.
Dependencies are inferred from the claim text.