virtual reality and augmented reality

EMM 5704 Computer Applications in Manufacturing Systems By: Dr. Faieza Abdul AzizEMM5704 Computer Applications in Manufacturing Systems

Computer Applications in Computer Applications in Manufacturing Systems Manufacturing Systems

EMM 5704EMM 5704

Virtual Reality

Group 7, Section 2:Group 7, Section 2:1.1. Zaid kh Saadon Zaid kh Saadon GS40746GS407462.2. Ghassan Maan Salim GS42930 Ghassan Maan Salim GS42930 3. Omotoso Oladiran Aremu GS412843. Omotoso Oladiran Aremu GS41284

Lecturer Name: Lecturer Name: Assoc. Prof Dr. Faieza Abdul Aziz


Introduction

Virtual reality is a form of technology that creates computer generated worlds or imaginary environment which people can explore and interact with. Also can be defined as artificial environment created with computer hardware and software and presented to the user in such a way that it appears and feels like a real environment.


How It Works

Virtual reality environments are primarily visual experiences.

User can interact either through standard input devices such as: mouse, key-board or through multi-modal devices like: head-gear or hand-gloves


Software Available in Market

• Multiverse (Freeware)

• Virtual Reality Studio

• Sense8 World Tool Kit (WTK)

• Autodesk Cyberspace Development kit

• Iris Performer

• Avocado software

• CAD


Hardware Hardware can be classified into two types of devices:

•Input devices oData Gloveo3D Mouse and Space BalloMotion TrackersoMIDI keyboard


• Output devices o Head-mounted displays (HMDs).o Binocular Omni-Orientation Monitor (BOOM).o Haptic interfaces and tactile feedback.


• Medical• Gaming• Manufacturing• Education• Military• Media And Entertainment

Applications


Advantages

• Many different fields can use VR as a way to train students without actually putting anyone in harm’s way.

• VR also helps those that can’t get out of the house experience a much fuller life by creating Virtual World.

• VR also helps patients recover from stroke, phobias and other injuries.


Disadvantages

• The total cost of the machinery to create a VR system is too high.

• Still in Under Development.

• VR is becoming much more common place but programmers are still grappling with how to interact with virtual environments.


Virtual Reality in Manufacturing


General Overview

In this 21st century which is also know the century of speed. Mega manufacturers nowadays are competing to improve their services in fulfilling the markets demand globally. Virtual reality is a fast growing manufacturing application that has multiple advantages into pushing the advancement of manufacturing technology to a different level.


Why apply in Manufacturing?

• to assist in minimizing human errors• shortening the research and development period• reduce the expenditures• and improve the designs reliability


CAD to Virtual Reality

It is hard to decide which software to implement when designing for the purpose of applying virtual reality. Adapting the designing software and translate it to a language understood by the virtual reality hardware is the main consideration.


Language Translation Methods

Basically, there are two ways of translating the design. Firstly, known as the direct translation which is directly translating the design from CAD to VR.

And secondly, intermediate translation which is by using the aid of another software to translate CAD’s design into VR reality.


Why CAD

• CAD is widely used to perform this task is because the price of the software is more reasonable compared to other designing softwares.

• Other than that, it is one of the oldest designing software, hence, many expert designers that are capable of preparing complex software is familiar with it.

• Furthermore, this tool is easy to use, and has the flexibility in performing complex designs.

• And also, most education sectors provide the service in teaching design using CAD software.


The Application

One of the top German car manufacturing companies (Volkswagen) has applied this function, the purpose was to implement new method for improving and accelerating the development process in vehicle styling and design. Three main steps were used to generate the complete virtual reality design.


How the System is Built..

Three main steps were used to generate the complete virtual reality design. Firstly, creating the design using AutoCAD.


Secondly, preparing the model, this step requires to change the design into meshes, the more meshes created the more detailed the design can be, and then the designer should work on eliminating the meshes and obtain a clean clear design


Thirdly, colours should be added to the design to vivifies the product and make it look real.


Augmented Reality!

Refers to a system in which the user views and acts within an enhanced version of the real world. The enhancements are virtual (computer- generated), and can include objects or information.


GOOGLE GLASS

Google Glass is a wearable computer with an optical head mounted display (OHMD). It was developed by Google.

Using Augmented Reality Technology.


Advantages of AR

AR Improve interaction Advances in technology Military Trainings which could be less expensive Rapid augmentation in tourism. Effective in Medical Field. Easy to locate desired places. A Good way of teaching. Increased the learning abilities.


Disadvantages of AR

o Three dimensional, real-time running augmented reality programs like "first person shooters" have been believed to increase teen aggression because they normalize violence.

o The lack of privacy.o Difficult to maintain Augmented Reality Systems.o Augmented reality is leading to an era of no privacy,

where criminals could simply point their phone at victims and learn anything they need to know about them.


• Google Glasses and Augmented ID or any other face detection application effect the privacy of humans.


The Future of Virtual Reality

• Virtual Reality is a growing industry.

• PC and specialized hardware are getting better, faster and cheaper because of development in VR.

• Maybe 3D user interfaces will replace the windows based ones?

• Huge demand for VRML programmers in near future.

• Revolution in gaming industries.


Conclusion

• With the help of virtual reality delicate operation had been carried out in the field of medicine. Military have been able to train in a way that physically it would not have been possible without the help of virtual reality. In manufacturing right from design and development virtual reality had help to come out with complex. Not only that maintenance had made simple because of virtual reality. In film industry most of the effect that we watch thinking is real they are just effect of virtual reality. Therefore VR has greatly enhances the design, product, delivery, storage. VR is virtually utilized in all works of life. But it does not mean that VR has no disadvantages.


Some aspects, such as the technology that is used, pose significant problems to developers and cause restrictions in attempts at widespread use and distribution.

The Cost: This new technology is expensive. The cost of developing hardware and software for the application of virtual reality technology is too great for many institutions to implement at this time. Computer instrumentation is expensive after introduction but has always decreased over time; so I suspect as this occurs virtual reality will eventually become more commonplace in Medicine.


The Restraint: Presently the equipment used to create a virtual environment is restrictive and uncomfortable to its users. This would have to be overcome for more convenient uses in surgical procedures.


Thank you very much.

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