| CPC A61B 5/11 (2013.01) [A61B 5/02055 (2013.01); A61B 5/14551 (2013.01); A61B 5/318 (2021.01); A61B 5/369 (2021.01); A61B 5/389 (2021.01); A61B 5/4088 (2013.01); A61B 5/4266 (2013.01); A61B 5/6803 (2013.01); A61B 5/6804 (2013.01); A61B 5/6805 (2013.01); A61B 5/6828 (2013.01); A61B 5/7275 (2013.01); A61B 5/746 (2013.01); G16H 40/63 (2018.01); G16H 50/20 (2018.01); A61B 5/0002 (2013.01); A61B 5/024 (2013.01); A61B 5/0533 (2013.01); A61B 5/0816 (2013.01); A61B 5/1123 (2013.01); A61B 5/4023 (2013.01); A61B 2503/20 (2013.01); A61B 2560/0223 (2013.01); A61B 2562/0219 (2013.01); G08B 5/004 (2013.01); G08B 21/02 (2013.01)] | 20 Claims |
|
1. A method comprising:
during a first time window, measuring a first movement signal related to movement of a worker with multiple movement sensors associated with the worker, and measuring a first biological signal of the worker with multiple biological sensors attached to the worker,
wherein a processing unit is disposed in a housing, which is a high visibility safety vest that is a component of personal protective equipment (PPE), which ensures that the wearer can be easily seen by other workers, oncoming vehicles and drivers of equipment; the processing unit comprising a processor, a communication unit, the multiple movement sensors, and the multiple biological sensors; wherein the multiple movement sensors are located at a distance from each other and from the processor within the housing; wherein the housing includes a pocket that encloses the processor and communication unit, and wherein at least one of the multiple movement sensors and at least one of the multiple biological sensors are located on a right side of the vest and at least one of the multiple movement sensors and at least one of the multiple biological sensors are located on a left side of the vest;
wherein the first time window occurs during a training activity comprising a series of prescribed movements performed by the worker, wherein the first movement signal and the first biological signal define normal behavior;
electronically storing at least one numerical descriptor derived from the first movement signal and at least one numerical descriptor derived from the first biological signal as reference data for the worker; wherein an activity label defining a type of movement of the worker is stored with the at least one numerical descriptor derived from the first movement signal and the at least one numerical descriptor derived from the first biological signal;
during a second time window, measuring a second movement signal related to movement of the worker with the multiple movement sensors, and measuring a second biological signal of the worker with the multiple biological sensors, wherein a sampling rate during the second time window of the multiple movement sensors and the multiple biological sensors is the same and is dependent on the type of activity being detected, and the size of the second time window for the multiple movement sensors and the multiple biological sensors is set based on the sampling rate to ensure having enough samples;
comparing at least one numerical descriptor derived from the second movement signal and at least one numerical descriptor derived from the second biological signal to the reference data to identify an impairment indicator, which proactively identifies and mitigates potential safety situations; and
wherein the communication unit enables communication of the processor with the multiple biological sensors and the multiple movement sensors.
|