Thursday, May 29, 2014

Filled Under:

Guide To Siemens HMI Software

By Marci Glover


Human-computer interaction as a branch of computer science is concerned with the user-oriented design of interactive systems and their human-machine interfaces (HMI). Knowledge of computer science is complemented by cognitive science, ergonomics, sociology to create Siemens HMI software. Important sub-areas of human-computer interaction, include usability engineering, E -learning, context analysis, interaction design and information design.

Human-machine interaction (HMI) is a parent field which deals with similar issues but generalizes the interaction between humans and the machine. An important aspect in this field involves the usability of software and hardware. The standard EN ISO 9241 (especially Part 110 and 11) defines which requirements are placed on the usability of software or hardware.

Human-computer interaction has differences with the human factor (accounted in ergonomics and usability), it focuses more on users working with computers rather than with other types of equipment. HCI also focuses on the implementation of software and hardware to support the interaction. Thus, the human factor is a broader concept. HCI can be characterized as the human factor - although some experts are trying to divide the data area.

HMI places less emphasis on objectives, procedures and physical activity. The problems tackled by HMI operations are a natural extension of the classical objectives of engineering psychology, except that new problems have a significant cognitive, communication and interactive nature, not previously considered in engineering psychology and helped advance the field in various directions.

Some techniques which attempt to make the interaction more natural include automatic speech recognition or gestures used to send information to a computer. TTS allows you to send audio signal understandable by humans. Data gloves offer a more direct option to the mouse interaction. The HMIs try to immerse users in a virtual reality or augment reality. Interactive tables provide a strong coupling between the direct manipulation by users on a device and feedback.

Industrial computers, PLCs are still largely equipped with pushbuttons and LEDs. In the car, people first interacted with simple mechanical means and the evolution of computing and robotics led to more sensors and information available to the driver who has to choose the action to perform via the steering wheel, brake pedal and various switches (lights, cruise control).

When designing user interfaces, developers consider the results of cognitive research in areas such as memory and attention. Modern models tend to focus on the ongoing feedback and dialogue between users, developers and engineers endeavor to ensure that the technical system revolve around the needs of users. User-oriented design: the development of user-centric systems is a modern, widely practiced philosophy, the essence of which is that users should be central to the development of any computer system.

From an organic point of view, it is possible to distinguish three types of HMI: The acquisition interfaces: buttons, knobs, joysticks, computer keyboard, MIDI keyboard, remote control, motion sensor, microphone with voice recognition. The combined interfaces: touch screens, multi-touch control feedback. Games and virtual worlds such as Second Life, Everquest or Wolfenstein, where several players or users enjoy overall immersion in a common landscape, provide insight into new relationships that can be implemented through realistic interfaces.




About the Author:







0 comments:

Post a Comment