Human machine interface

Human-machine interfacealso called user interface or human-computer interfacemeans by which humans and computers communicate with each other. The human-machine interface includes the hardware and software that is used to translate user i.

Usability of the human-machine interface is the degree to which the design makes using the system effective, efficient, and satisfying. The general idea has been to build interfaces that are based on an understanding and appreciation of human physical, mental, and behavioral capabilities.

In the classic human-machine model, the human and the machine are treated as information-processing devices. Similar to humans, computers are able to sense information encoded as inputs; compare, choose, and formulate appropriate responses; and then communicate those responses as outputs. In that model, the outputs from one component of the system feed into the inputs of the other. For example, the output from the human, such as moving a computer mouse to communicate intentions, forms the input to the machine.

Because humans have traditionally interacted with the external world through their physical bodies, most computer input mechanisms require performing some form of motor activity, be it moving a mouse, pushing buttons, or speaking.

The design of input devices and techniques to accommodate limits of the human user and even to exploit those limits has been investigated most extensively in the field of human factors and ergonomics. Common computer input devices include pointing devices, such as the mouse, trackball, joystick, and specialized three-dimensional trackers, as well as various keyboards and keypads.

Human perceptual and cognitive abilities have been used to inform the development of computers that can sense input in the form of speech or vision or that rely on touch-based gesture recognition and handwriting recognition. Given the wide assortment of inputs available, the actual choice of device and application can often be based on the task, users, or environments in which they are to be used.

Driven largely by the needs of people with physical disabilities, researchers have begun to leverage brain-sensing technologies to build cognitive neural prostheses or brain-computer interfaces BCIsin which users manipulate their brain activity instead of using motor movements to control computers.

For example, paralyzed patients can control a cursor, type text, or move a wheelchair simply by imagining the movement of different parts of their bodies or by thinking about different tasks. Regardless of the actual method, successful input typically requires adequate and appropriate system feedback to guide actions, confirm actuation, and present results.

human machine interface

That feedback, or output, is presented through a form that is perceived by the human. The most common form of output has been visual output through computer displays, and the subfield of information visualization has focused on exploiting principles of human perception and cognition to design imagery that best conveys ideas.

In addition to visual output, designers have also explored the use of auditory, tactile or touch, and even olfactory smell and gustation taste interfaces to take advantage of other human senses. One example of compelling tactile output is game console controllers that vibrate when hit by an opponent.

Similarly, many global positioning system GPS units have auditory interfaces in addition to the traditionally visual map, because drivers cannot divert their vision from the task at hand to attend to visual GPS information. The evolution of the human-machine interface can be divided into several historical phases, marked by the dominant interface of the time.

In the s the prevalent model was batch processing, in which users visual pinball animated backglass all details of a task typically on punch cardsexecuted them by feeding the cards to the machineand received results an hour or more later, when the processing was fully completed.

Batch processing was tedious and error-prone. The batch interface was followed by developments in command-line interfaces, which allowed users to interactively issue commands that the system immediately executed and produced results for.

Command-line interfaces, although an improvement, did not take full advantage of human perceptual, cognitive, and learning abilities. In modern GUIs, users engage in rich communication with the computer by using various input devices. For example, in the WIMP window, icon, menus, pointer model or the desktop metaphorthe user manipulates virtual objects on-screen as if they were physical objects e. Human-machine interface. Info Print Print.

Table Of Contents. Submit Feedback. Thank you for your feedback. Introduction Usability Input and output Evolution of the human-machine interface. Human-machine interface computing. Written By: Desney S. See Article History. Alternative Titles: human-computer interface, user interface.Human-machine interface HMI is a component of certain devices that are capable of handling human-machine interactions.

The interface consists of hardware and software that allow user inputs to be translated as signals for machines that, in turn, provide the required result to the user. Human-machine interface technology has been used in different industries like electronics, entertainment, military, medical, etc.

Human-machine interfaces help in integrating humans into complex technological systems.

Introduction to Human Machine Interface (HMI) Technology

Human-machine interface is also known as man-machine interface MMIcomputer-human interface or human-computer interface. In HMI, the interactions are basically of two types, i.

Since HMI technology is ubiquitous, the interfaces involved can include motion sensors, keyboards and similar peripheral devices, speech-recognition interfaces and any other interaction in which information is exchanged using sight, sound, heat and other cognitive and physical modes are considered to be part of HMIs.

Although considered as a standalone technological area, HMI technology can be used as an adapter for other technologies. The basis of building HMIs largely depends on the understanding of human physical, behavioral and mental capabilities. In other words, ergonomics forms the principles behind HMIs. Apart from enhancing the user experience and efficiency, HMIs can provide unique opportunities for applications, learning and recreation.

In fact, HMI helps in the rapid acquisition of skills for users. A good HMI is able to provide realistic and natural interactions with external devices.

The advantages provided by incorporating HMIs include error reduction, increased system and user efficiency, improved reliability and maintainability, increased user acceptance and user comfort, reduction in training and skill requirements, reduction in physical or mental stress for users, reduction in task saturation, increased economy of production and productivity, etc.

Touchscreens and membrane switches can be considered as examples of HMIs. HMI technology is also widely used in virtual and flat displays, pattern recognition, Internet and personal computer access, data input for electronic devices, and information fusion. Toggle navigation Menu.

Home Dictionary Tags Technology Trends. Share this:. Related Terms. Related Articles. Experts Predict the Top Tech Trends of The Most Important Trends in Gaming. How can cloud computing save money? What is the difference between big data and data mining? What is the difference between big data and Hadoop? More of your questions answered by our Experts. Related Tags. General Computing Technology Trends Techwise.

Machine Learning and Why It Matters:. Latest Articles. How Cryptomining Malware is Dominating Cybersecurity.This HMI is applicable for any screen where there is a interaction going between user and machine.

HMI is most frequently used in industrial process. The interface consists of hardware and software that allow user inputs to be translated as signals for machines that, in turn, provide the required result to the user. Human-machine interface technology is been used in different industries like electronics, entertainment, chemical, pharmaceuticals, military, medical, etc.

In another word Human-machine interface HMI can be termed as man-machine interface MMI or, computer-human interface or, human-computer interface. Apart from enhancing the user experience and efficiency, HMIs can provide unique opportunities for applications, learning and recreation. In fact, HMI helps in the rapid acquisition of skills for users. A good HMI is able to provide realistic and natural interactions with external devices. The advantages provided by incorporating HMIs include error reduction, increased system and user efficiency, improved reliability and maintainability, increased user acceptance and user comfort, reduction in training and skill requirements, reduction in physical or mental stress for users, reduction in task saturation, increased economy of production and productivity, etc.

Heat Transfer Quiz Share 1K. Leave a Reply Cancel reply Your email address will not be published. Comment Name Email Website. Subscribe Us On YouTube. Latest Government Job Updates. It reserves all copyright Claims. Search Your Topic Search for:.

human machine interface

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Read more. Transportation Plants Water and waste water Industry And many more.Smartphone centric infotainment system s ha ve boost ed the popularity of multimodal in-car interfaces.

Todayvehicles are connect ing with m any software products and services, and the design of automotive human machine interfaces is becoming increasingly driver-focused. Developing software for rear seat entertainment systems that include navigation, audio, video, and in-car internet. Conducting thorough research into the optimal look and feel of HMIs to couple great design with usability. Our engineers have extensive experience and a lot of know-how in designing navigation solutions and human machine interface solutions that can plan your route to any destination.

We provide deep integration of automotive HMI software with cloud and mobile devices to transform vehicles from means of transportation to personal devices. We integrate navigation, HMI, and in-car infotainment systems with cloud-based location platforms to get the most relevant data. We designed an integrated navigation system that offers a user-friendly city driving experience.

The system identifies pedestrians and public transportation vehicles and can also plan routes. Automotive human machine interface HMI solutions allow drivers to interact with touchpads, multi-touch dashboards, built-in screens, control panels, push buttons, and traditional keypads. Because a car is an entire ecosystem of interconnected parts, quality HMI software is crucial for the automotive industry.

Using the latest technologies, automotive HMI software makes next-generation cars adaptive and personalized. Modern consumers demand a seamless experience, and HMI solutions can satisfy the demand for smooth interactions with a car. Enabled by smart systems and embedded sensors, human machine interfaces make sure that vehicles react to driver intent and preferences.

Thanks to our automotive expertise and excellent software development skills, our customers get maximum value from our HMI development services. Automotive human machine interface solutions help drivers control a range of vehicle functionalities, making cars more responsive to human interaction. Holistic human machine interface design results in an in-car feedback system that encourages drivers to adjust their driving habits for better performance, fuel efficiency, and safety.

The ability of an HMI to respond to rapidly changing road conditions and to provide remote diagnostics helps to prevent vehicle malfunctioning and lowers the risk of accidents. With ergonomics at its core, an HMI gives drivers opportunities to interact with external devices and increases safety. With a wide range of automated functions, an HMI can help drivers park, avoid obstacles, and even prevent microsleep.

human machine interface

A human machine interface gives drivers flexibility on the road while helping them feel safe in an autonomous car. Apply advanced AgriTech technologies for sustainable farming to increase yields and optimize resources. Build transit and delivery routes to delight customers, optimize traffic, and reduce operational costs.

Thank you for your message. We will get back to you shortly. Human Machine Interface Integrate apps, screens, and infotainment systems Smartphone centric infotainment system s ha ve boost ed the popularity of multimodal in-car interfaces. Our HMI software development services.

Developing software that brings together drivers, vehicles, and internet-based services. Designing applications for HUDs that augment the driving experience. Adapting navigation software for instrument clusters. Building applications that integrate mobile and web navigation systems. Providing cloud-based voice recognition services.Learn something new every day More Info A human machine interface HMI is an interface which permits interaction between a human being and a machine.

Human machine interfaces vary widely, from control panels for nuclear power plants to the screen and input buttons on a cell phone. Designing such interfaces is a challenge, and requires a great deal of work to make the interface functional, accessible, pleasant to use, and logical.

Some engineers specialize in developing human machine interfaces and changing the ways in which people interact with machines and systems. Two components are needed in a human machine interface.

What is Human Machine Interface?

The first is an input. A human user needs some way to tell the machine what to do, to make requests of the machine, or to adjust the machine. Examples of input devices include keyboards, toggles, switches, touch screens, joysticks, and mice. All of these devices can be utilized to send commands to a system or even an interlinked set of systems. The interface also requires an output, which allows the machine to keep the human user updated on the progress of commands, or to execute commands in physical space.

On a computer, for example, users have a screen which can display information. A robot, on the other hand, may move in response to commands and store data on a hard drive so that people can see how the robot responds, learns, and navigates the world. Outputs can also include things as simple as status lights which alert people when toggles or switches have been activated. The technology behind the human machine interface is constantly improving.

Researchers have developed interfaces which can be controlled with the mind, for example, seeing applications for this technology among stroke patients and other people with severely restricted modes of communication. Likewise, outputs have become much more sophisticated over time.

As many people have noted, a poorly designed human machine interface can be extremely frustrating. On one end of the scale, the interface may be buggy or nonfunctional, causing difficulty because it does not work as intended. On the other end of the scale, the interface works, but it is designed in such a way that it is confusing and challenging to operate because it is not intuitive for users.

The art of designing intuitive interfaces requires a deep understanding of how humans interact with their environment and an awareness of the psychology of designing interfaces in a way which will be accessible to a broad spectrum of humans. What works for an engineer in a human machine interface, for example, might not be as easy for a member of the general public. I am a marine electrical engineer. I am interested in the HMI uses for a power plant on a sea vessel.

Proxy Post 3 User interface designs are considered for ergonomic effectiveness.HMI is the acronym for Human Machine Interfaceand can be designed as just that; an interface between the user and the machine. An HMI is considered an interface; a very broad term that can include MP3 players, industrial computers, household appliances, and office equipment.

However, an HMI is much more specific to manufacturing and process control systems. An HMI provides a visual representation of a control system and provides real time data acquisition. An HMI can increase productivity by having a centralized control center that is extremely user-friendly.

What is Modbus and How does it Work?

A Human Machine Interface HMI is exactly what the name implies; a graphical interface that allows humans and machines to interact.

Human machine interfaces vary widely, from control panels for nuclear power plants, to the screen on an iPhone. However, for this discussion we are referring to an HMI control panel for manufacturing-type processes. An HMI is the centralized control unit for manufacturing lines, equipped with Data Recipesevent logging, video feed, and event triggering, so that one may access the system at any moment for any purpose. It is the PLC that takes the information from the sensorsand transforms it to Boolean algebra, so the HMI can decipher and make decisions.

There are three basic types of HMIs : the pushbutton replacer, the data handler, and the overseer.

Human Machine Interface

Before the HMI came into existence, a control might consist of hundreds of pushbuttons and LEDs performing different operations.

The pushbutton replacer HMI has streamlined manufacturing processes, centralizing all the functions of each button into one location. The data handler is perfect for applications requiring constant feedback from the system, or printouts of the production reports.

With the data handler, you must ensure the HMI screen is big enough for such things as graphs, visual representations and production summaries. An HMI is a substantial purchase, so it is important to know exactly what is required of it. An HMI is used for three primary roles: a pushbutton replacer, data handler, and overseer.

The elimination of these mechanical devices is possible because the HMI can provide a visual representation of all these devices on its LCD screen, while performing all the same functions. The Data Handler is used for applications that require constant feedback and monitoring. Often these Data Handlers come equipped with large capacity memories.

human-machine interface (HMI)

These are centralized systems that monitor and control entire sites or complexes of large systems spread out over large areas. The actual physical properties of an HMI vary from model to model and among manufacturers.

It is important that one makes the appropriate selection. An HMI that is located in a water plant might have various water seals around its perimeter, as opposed to an HMI that is located in a pharmaceutical warehouse. The actual size of an HMI is also a key physical property that will vary, because not all applications require a large, high-resolution monitor.

Some applications may only require a small, black and white touch screen monitor. When it comes to selecting an HMI, the physical properties are extremely important because one must take into consideration the operating environment, and what safety measures the HMI needs to protect itself. Also, a specific size may be needed due to space limitations. Lastly, physical properties include the processor and memory of the HMI.

It is important to make sure that the processor and memory capabilities are sufficient enough to control a system.

First consider the other components that are necessary to make a manufacturing control system operate. The production line consists of all the machinery that performs the work required in the production of the product.

The operating environment should always be considered when selecting an HMI. For example: for use in a warehouse that has excessive noise or vibration, one might decide on a heavy-duty HMI. If used in the food processing industry or somewhere that might need to be washed down, select a water-protected HMI. One must also consider temperature as a factor in the selection process.The proliferation of IoT products has dramatically increased expectations for ease-of-use. When industrial controls are as clear as a smartphone app, operators work quicker with fewer errors.

When a consumer device is sleek and intuitive, brands shine and sales increase. The most-recognized brands worldwide and their OEMs partner with Jabil for its deep expertise with interactive components for human machine interface HMI — touchscreens, sensors, and tactile, haptic feedback. From design through manufacturing, from factory controls through consumer medical devices, Jabil helps integrate these diverse technologies into products that feature user-friendly HMI.

Haptic technology is a particularly critical advance in HMI. With controls and devices, Jabil uses the sense of touch both to direct a machine and to guide a user. For example, in an excavator, an operator can use a soft touch on the control to lighten hydraulic force for a slow and careful dig.

At the same time, if the machine encounters hard rock, it can add resistance to the control, guiding the operator to use more force. To both react to and guide user responses, touchscreens can use a variety of haptic technologies including ultrasonic vibrations, electroactive polymers, and microfluidics.

Jabil focuses on developing, exploring, and mastering these and other HMI technologies, and Jabil is uniquely able to implement them with innovative design and cost-effective manufacturing techniques. Human Machine Interface Manufacturer.

Applying Deep Expertise with Interactive Components. Related Resources:. Fact Sheet: Human Machine Interface. Infographic: Human Machine Interface. Learn More.


Comments

Leave a Reply

Your email address will not be published. Required fields are marked *