Revolutionising the relationship between man and machine - Inria
man-machine-environment system engineering can effectively prevent the man , machine and environment of system and the relationship among them to. Analysis on problems of interaction between humans and machine Human- machine-environment relationship for the changing and washing action of. Sep 18, Taking the man-machine-environment system as the of system and the relationship among them to make the system become “safety.
Human factors are a system concerned with the relationship among human beings, work place or work environment and machines. All man-machine systems are produced with some objective in view.
This objective is always well defined and the system is designed so as achieve the objective as successfully as possible. In view of this the operational functions of both the components and constituents i. There is one another aspect of man-machine system which, though not strictly a part of it, effects the system performance to a great extent.
This is the system environment or what we call as working conditions. The proper integration of man and machine, which is beneficial for human operator and enhances the overall system performance, is a primary aim of the ergonomics discipline.
Characteristics of Man-machine System Are as follows: Classification of Man-Machine Systems: Depending upon size and complexity, man machine systems are of following three types: They are essentially man directed systems. These are flexible in nature and small in size. When determining if a workstation, tool or other piece of equipment is ergonomically designed or organized, there are specific items to consider: In an office setting, best practices are to: Some best practices for employees in this type of environment include: Evaluate tools that may cause repetitive trauma or shock to the joints caused by vibration Consider limiting the amount of time spent using vibrating hand tools Re-evaluate the process, and if possible, use industrial sized tools to eliminate the need to use the hand tool Retrofit or provide tools that are ergonomically designed Locate cushions and grips for both manual and mechanical hand tools to increase comfort and aid in preventing strain injuries Evaluate the job.
- Ergonomics: The Relationship Between People And Machines
- Man-Machine Systems: Design, Characteristics and Classification
- Revolutionising the relationship between man and machine
If employees have duties that require them to place themselves in awkward positions, handle awkwardly shaped or extremely heavy loads, consider altering the task or using available mechanical assistance Laptop ergonomics: The use of laptop computers has exploded in recent years, bringing with that growth ergonomic issues relating to repeated use.
For more information, go to http: The purpose of an ergonomic assessment is to either prevent a problem or injury from occurring or to correct an existing problem.
In the office setting computer-based workthere are specific areas that should be addressed: The VDT should be tilted so that the top of the screen is at or just below eye level slightly lower for bi- or trifocal wearers.
Should be adjusted so the wrist and hand remain in a neutral position at all times There should be a slight arch in the fingertips and center of the hand An adjustable keyboard tray should be able to extend and tilt so the employee does not have to stretch or hyperextend to switch tasks Mouse: Should be located in close proximity to other tasks For employees who use the phone extensively, a headset system may be an option to prevent stress to the neck and shoulders Mechanical Tasks: Adjusting valves, performing maintenance in small spaces Try using a chain to assist with opening valves Use forklifts to lift heavy objects while loading and unloading Take frequent breaks Use the buddy system for extensive jobs and alternate personnel periodically For jobs that require bending, try using adjustable racks or stands to correct the problem Rather than using a ladder, use a lift with more space to work safely A checklist from the OSHA Web site has been attached to assist with completing an ergonomic assessment.
What can the employee do to help?