Personnel safety sensing system
AssigneeSalunda Limited
InventorsAlan Patrick John Finlay, Andrew Henry John Larkins
Life of this patent
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Abstract
A location system for locating workers including a plurality of light detectors mounted at known locations and configured to detect light from one or more workers, and a processing system configured to determine locations of the workers using the light detected by the light detectors. There is also disclosed a wearable device for locating a worker including a wireless transceiver, and a wearable device light source and/or one or more reflective elements. There is also disclosed a method for locating workers including detecting light from one or more workers using a plurality of light detectors mounted at known locations, and determining locations of the workers using the light detected by the light detectors.
Claims17
A system configured to locate workers, the system comprising:
- a first location system configured to determine locations of the workers in a working environment, the working environment being at least one of a drill floor, a deck, an oil rig, a drilling rig or a rig for extracting hydrocarbons;
- worker devices to be carried by one or more of the workers who are authorized, each worker device including a wireless transceiver;
- and
- a second location system arranged to determine the locations of the worker devices as the locations of authorized workers;
- and
- a processing system configured to determine first locations of the workers using the first location system and to determine second locations of the authorized workers using the second location system;
- wherein:
- the processing system is further configured to identify as unauthorized workers any workers whose location is determined using the first location system who are not authorized workers whose location is determined using the wireless signal transmissions from the worker devices;
- the processing system is further configured to determine if the location of each worker is within a defined area;
- and
- in response to each determination that a worker is within the defined area, determine to output a warning signal only if the worker is identified as unauthorized for the defined area such that a warning signal is not output if the worker is identified as authorized for the defined area.
Dependencies are inferred from the claim text.