Methods and systems for identifying and addressing worker fatigue

A system comprising:

• a memory;
• and
• a processing device coupled to the memory, the processing device to perform operations comprising:
• identifying work data associated with a worker of an organization, wherein the work data comprises a number of hours worked by the worker during one or more intervals of a prior time period;
• calculating, based on the identified work data, a fatigue state associated with the worker for the prior time period, wherein the fatigue state represents a number of fatigue hours accumulated by the worker over each of one or more intervals of the prior time period relative to a number of work hours associated with the worker and a number of rest hours associated with the worker and based on a target work calendar associated with the worker, wherein calculating the fatigue state comprises:
• applying a time weight coefficient to the number of fatigue hours accumulated for each interval of the prior time period, wherein a value of the time weight coefficient for a particular interval depends on a temporal distance between the particular interval and a current interval, and wherein values for the time weight coefficients are determined according to a monotonically decreasing function such that the time weight coefficient applied to fatigue hours accumulated during or around the current interval has a higher value than the time weight coefficient applied to fatigue hours accumulated during intervals at an end of the prior time period;
• determining a fatigue score associated with the worker based on the calculated fatigue state associated with the worker, wherein the fatigue score indicates a level of fatigue associated with the worker during a current time period in view of the calculated fatigue state associated with the worker;
• performing one or more normalization operations to obtain a normalized fatigue score associated with the worker based on the determined fatigue score associated with the worker and the fatigue state of other workers of the organization during the prior time period;
• and
• providing the normalized fatigue score to a client device.

A non-transitory computer readable storage medium including instructions that, when executed by a processing device, cause the processing device to perform operations comprising:

• identifying work data associated with a worker of an organization, wherein the work data indicates at least a number of hours worked by the worker during one or more intervals of a prior time period;
• calculating, based on the identified work data, a fatigue state associated with the worker for the prior time period, wherein the fatigue state represents a number of fatigue hours accumulated by the worker over each of one or more intervals of the prior time period relative to a number of work hours associated with the worker and a number of rest hours associated with the worker and based on a target work calendar associated with the worker, wherein calculating the fatigue state comprises:
• applying a time weight coefficient to the number of fatigue hours accumulated for each interval of the prior time period, wherein a value of the time weight coefficient for a particular interval depends on a temporal distance between the particular interval and a current interval, and wherein values for the time weight coefficients are determined according to a monotonically decreasing function such that the time weight coefficient applied to fatigue hours accumulated during or around the current interval has a higher value than the time weight coefficient applied to fatigue hours accumulated during intervals at an end of the prior time period;
• determining a fatigue score associated with the worker based on the calculated fatigue state associated with the worker, wherein the fatigue score indicates a level of fatigue associated with the worker during a current time period in view of the calculated fatigue state associated with the worker;
• performing one or more normalization operations to obtain a normalized fatigue score associated with the worker based on the determined fatigue score associated with the worker and the fatigue state of other workers of the organization during the prior time period;
• and
• providing the normalized fatigue score to a client device.