Ergonomic data collection and analysis

• US 9,936,902 B2
• Filed: 05/06/2013
• Issued: 04/10/2018
• Est. Priority Date: 05/06/2013
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Bhushan, Anant
• Primary Examiner(s): Eisen, Alexander
• Assistant Examiner(s): Said, Mansour M
• Application Number:
  US13/888,055
• Publication Number:
  US 20140326084A1
• Time in Patent Office: 1,800 Days
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1126 using a particular sensing technique
• CPC Class Codes: G01L 3/26 Devices for measuring efficiency, i.e. the ratio of power output to power input

Abstract

Techniques for monitoring and detecting ergonomic hot spots associated with movements of subjects are disclosed. For example, data may be collected by way of sensors attached to a plurality of subjects and may be analyzed to determine forces (e.g., vibration, jerks, acceleration, etc.) associated with the movements of the subjects. The analyzed data can be compared to ergonomic conditions to detect the ergonomic hot spots.

Claims

1. A method for monitoring performance of a process, the method comprising:

receiving acceleration data from wearable nodes, the acceleration data being indicative of movements of the wearable nodes as a person wearing the wearable nodes is engaged in movement associated with a defined and repeatable task, wherein an amplitude of the acceleration data is indicative of a force detected at the wearable nodes;

accumulating the received acceleration data;

analyzing the accumulated acceleration data by comparing the accumulated acceleration data to one or more acceleration thresholds;

determining, based on the analyzing, a pattern of task-related movements indicative of ergonomically unacceptable conditions for the defined and repeatable task;

identifying an ergonomic hot spot based at least in part on the pattern of task-related movements and associating the identified ergonomic hot spot with the pattern; and

sending, to a computing device that is communicatively coupled to the wearable nodes, a message of the identified ergonomic hot spot and the associated pattern of task-related movements.

2. The method of claim 1 further comprising identifying the ergonomic hot spot when acceleration data corresponding to the movements exceeds an acceleration threshold.

3. The method of claim 2 further comprising:

providing information indicative of a physical condition associated with the ergonomic hot spot, the information being provided to a subject prior to an occurrence of the physical condition; and

receiving information indicative of an acknowledgement of the physical condition from the subject.

4. The method of claim 2 further comprising providing an administrative solution to mitigate the ergonomic hot spot.

5. The method of claim 2 further comprising providing an engineering solution to mitigate the ergonomic hot spot.

6. The method of claim 1 further comprising providing a tool configured to render a cumulative effect over time of the acceleration data to a subject associated with the nodes and an identifier of an ergonomic hot spot associated with the acceleration data.

21. The method of claim 1, wherein the ergonomic hot spot is indicative of repetitive or continuous task-related movements.

7. A system comprising:

a first wearable computing device comprising a first accelerometer, the first wearable computing device configured to collect acceleration data caused by movements by a person wearing the first wearable computing device; and

a second computing device communicatively coupled to the first computing device, the second computing device configured to;

receive the acceleration data from the first wearable computing device as a person wearing the wearable computing device is engaged in movement associated with a defined and repeatable task, wherein an amplitude of the acceleration data is indicative of a force detected at the first wearable computing device;

accumulate the received acceleration data;

process the received and accumulated acceleration data and one or more thresholds to determine-a pattern of task-related movements indicative of an ergonomically unacceptable condition;

identify an ergonomic hot spot based at least in part on the pattern of task-related movements for the defined and repeatable task and associate the identified ergonomic hot spot with the pattern of task-related movements; and

generate a warning indicative of the identified ergonomic hot spot and the associated pattern of task-related movements.

8. The system of claim 7, wherein the second computing device is further configured to associate a set of the received data with the ergonomic hot spot when the received and accumulated acceleration data corresponding to the one of the movements exceeds an acceleration threshold from the one or more thresholds.

9. The system of claim 8, wherein the first wearable computing device comprises a second accelerometer, wherein:

the first accelerometer is attached to a first node;

the second accelerometers is attached to a second node;

the first node is different from the second node; and

the acceleration data comprises data measured by the first accelerometer and the second accelerometer.

10. The system of claim 9, wherein the second computing device is configured to associate the first node or the second node with the ergonomic hot spot based at least in part on a comparison of the acceleration data associated with the first accelerometer and the second accelerometer to the one or more thresholds.

11. The system of claim 8, further comprising a plurality of wearable computing devices comprising accelerometers, the plurality of wearable computing devices configured to be attached to a plurality of subjects and collect acceleration data caused by movements associated with the plurality of subjects.

12. The system of claim 11, wherein the second computing device is further configured to analyze collected acceleration data to determine that a task associated with the plurality of subjects is an ergonomic hot spot.

13. The system of claim 11, wherein the second computing device is further configured to analyze the collected acceleration data to determine that a location within a work environment associated with the plurality of subjects is an ergonomic hot spot.

14. The system of claim 11, wherein the second computing device is further configured to analyze the collected acceleration data to determine that a set of movements associated with the plurality of subjects is an ergonomic hot spot.

15. The system of claim 7, wherein the acceleration data is indicative of a vibration movement associated with a subject, the first computing device being attached to the subject.

16. The system of claim 7, wherein a change in the acceleration data is indicative of a jerk movement associated with a subject, the first computing device being attached to the subject.

17. A non-transitory computer readable storage medium comprising computer readable instructions that, when executed on a system comprising a processor and memory, cause the system to at least:

receive data indicative of physical movements of a plurality of subjects by way of a plurality of wearable devices attached to the plurality of subjects, wherein an amplitude of the data is indicative of a force detected at the wearable devices;

accumulate the received data;

analyze at least a subset of the accumulated data by comparing the subset of the data to one or more thresholds;

determine, based on the analyzed subset, a pattern of task-related movements indicative of an ergonomically unacceptable condition for a defined and repeatable task;

identify an ergonomic hot spot based at least in part on the pattern of task-related movements and associate the identified ergonomic hot spot with the pattern; and

send, to one of the wearable devices, a message of the identified ergonomic hot spot and the associated pattern of task-related movements.

18. The computer readable storage medium of claim 17 comprising further computer readable instructions that, when executed on the system, cause the system to at least determine that the ergonomic hot spot meets a specified ergonomic condition.

19. The computer readable storage medium of claim 18, wherein the data indicative of the physical movements further comprise a combination of motion data, posture data, and location data, the motion data comprising vibration data and force data.

20. The computer readable storage medium of claim 18, wherein the ergonomic condition is updated based at least in part on the data indicative of the physical movement.