Simultaneous triggering of remote units
AssigneesFairfield Industries Incorporated, Wireless Systems International Limited
InventorsPaul George Turner, Steven Anthony Meade, Richard Michael Bennett
Life of this patent
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Abstract
In a remote data acquisition system a control unit transmits a radio signal simultaneously to a plurality of remote units. Each remote unit receives the radio signal at different times dependent on various system delay factors. A compensating delay is added in each remote unit in order to trigger each remote unit for data acquisition at the same time.
Claims34
A method of triggering events simultaneously in a plurality of remote units, the method comprising transmitting a radio signal from a control unit simultaneously to a plurality of remote units, detecting reception of the radio signal at each remote unit, determining for each remote unit a compensation delay period dependent on a system delay of the radio signal, and triggering an event in each remote unit upon expiry of the compensation delay period following detecting reception of the radio signal.
A telemetry system comprising:
- a plurality of remote units;
- a control unit for transmitting a radio signal to the plurality of remote units to trigger events simultaneously in the remote units;
- wherein each remote unit comprises:
- a detecting means for detecting reception of a radio signal sent by the control unit;
- a compensating means for determining a compensation delay period dependent on a system delay of the radio signal;
- and
- a triggering means for triggering an event in the remote unit upon expiry of a determined compensation delay period following detecting reception of the radio signal.
Dependencies are inferred from the claim text.