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An Evaluation Method Based on Niosh Lifting Equation

A technology of equation and difficulty level, applied in the field of evaluation based on NIOSH lifting equation, can solve problems such as unreasonable design of manufacturing unit and occupational musculoskeletal injury of workers, and achieve the effect of reducing labor cost and workload.

Inactive Publication Date: 2019-07-12
JILIN UNIV
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Problems solved by technology

[0002] In manufacturing, there are many occasions that require manual material handling, such as dismantling boxes, handling parts, etc. Due to the unreasonable design of the manufacturing unit, it is easy to cause a large number of workers' occupational musculoskeletal injuries, especially unreasonable with manual lifting operations lower back pain

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  • An Evaluation Method Based on Niosh Lifting Equation
  • An Evaluation Method Based on Niosh Lifting Equation
  • An Evaluation Method Based on Niosh Lifting Equation

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Embodiment Construction

[0028] An evaluation method based on the NIOSH lifting equation, which uses the Kinect V2 device to automatically obtain the horizontal coefficient HM, height coefficient VM, distance coefficient DM, angle coefficient AM, frequency coefficient FM and object Coefficient CM, so as to obtain the lifting limit RWL.

[0029] Known NIOSH lifting equation RWL=23KG×HM×VM×DM×AM×FM×CM. Among them, 23KG is the weight constant; the level coefficient H represents the lifting starting height h 1or termination height h 2 The horizontal distance between the center of the hands and the middle of the two ankle joints, in cm. Height coefficient VM=1-0.003|V-75|, V means lifting starting speed v 1 or termination velocity v 2 The vertical distance between the center of the hands and the ground, in cm. distance factor D represents the vertical distance between the start and end of lifting, in cm. The frequency coefficient FM represents the frequency parameter of lifting, the angle coeffic...

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Abstract

The invention belongs to the field of ergonomics, in particular to an evaluation method based on the NIOSH lifting equation. The invention starts from a NIOSH lifting equation evaluation method, and aims to automatically calculate various coefficients of the lifting equation by using human skeleton data collected by a Kinect V2 device. By identifying the start and end of the lifting action, the horizontal coefficient, height coefficient, distance coefficient, angle coefficient, The frequency coefficient and object coefficient are automatically calculated, thereby reducing the workload of professionals and reducing labor costs.

Description

technical field [0001] The invention belongs to the field of ergonomics, in particular to an evaluation method based on the NIOSH lifting equation. Background technique [0002] In manufacturing, there are many occasions that require manual material handling, such as dismantling boxes, handling parts, etc. Due to the unreasonable design of the manufacturing unit, it is easy to cause a large number of workers' occupational musculoskeletal injuries, especially unreasonable with manual lifting operations resulting in lower back pain. Therefore, the lifting operation analysis is an essential item in the ergonomics analysis. [0003] The NIOSH lifting equation analysis method is proposed by the National Institute of Occupational Safety and Health of the United States to predict the value range of lifting heavy objects, evaluate whether the lifting load is safe, and whether improvement measures should be taken to avoid or reduce the back of workers. An ergonomic analysis method ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06Q10/06
CPCG06Q10/0639G06V40/23
Inventor 刘鹏王磊姜盛乾张起勋李晓雯魏超虎吴可歆刘思阅任宇欣
Owner JILIN UNIV