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Friday, May 23, 2014

Abcs Of Siemens HMI Software

By Marci Glover


Human-computer interaction (HCI) is a multidisciplinary scientific field that deals with the development, evaluation and implementation of interactive computing systems for human use, as well as to study various aspects of its impact. In the field of computer supported collaborative work, emphasis is placed on the ability of systems to support collaborative interaction of a group of people. The system may be based on the Siemens HMI software.

A set of multiple monitors, devices and control surfaces form a console or management station. From a console, an operator receives notifications and performs control actions. A control room may contain one or more control stations. The control rooms and control stations can be found in many different applications, such as control tower of an airport, control center for police and ambulances and nuclear power plant. The design of the passenger compartment of airplanes and helicopters includes the highly specialized user interfaces.

The most important international conference series in the field of human-computer interaction is the Conference of Human Factors in Computing Systems. It is organized by the Special Interest Group. Human-machine interaction (HMI) defines the means and tools implemented so that humans can control and communicate with a machine. Improving the ergonomics of a man-machine interface in particular the objective of optimizing the development workstation and thus reduce the risks of working on screen (musculoskeletal disorders, eye fatigue, burnout syndrome, stress) is an important aspect. There are many ways for people to interact with surrounding machinery. These ways are very dependent on interaction devices.

The term human-machine interface is sometimes used to refer to what is best described as direct neural interface, or some imaginary technology can make a direct connection between the human nervous system and a computer. The user interface is to be understood as an intermediary between man and machine, and may include both the hardware and software side of a machine.

Ergonomic studies have also emphasized the relation of working conditions with stress and the visual perception of images. In assessing the current user interface, or developing new interfaces, designers should keep in mind the following principles of development: From the outset, it is necessary to focus on users and tasks. Set the number of users who are required to perform tasks. Iterative design involves determining the number of users, tasks, making empirical measurements.

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.




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