Chair-Mounted Computer Workstation Introduction Project Requirements Abstract Current computer console paradigms involve the use of significant computer hardware within an enclosure presented in front of the operator, which must be environmentally protected and maintained. Specifically in a military application, a less cumbersome method of interface is needed to allow soldiers to accomplish their typical work tasks. The solution to this problem is the development of a versatile and modular workstation mounted to a chair allowing greater freedom of movement while maintaining functionality and durability. The result of this project will be an operational prototype that may be modeled for future development. This prototype will demonstrate a feasible and reliable solution to the current problem, allowing the operator mobility without sacrificing functionality. Design Objectives Provide the functionality of a traditional computer workstation System shall be able to function in a cramped environment with large amounts of ambient noise. Implement a graphical user interface to ease use of peripherals Functional Requirements Provide audio and visual Feedback User will have redundant data entry User will be able to use all system capabilities with peripherals User will be able to use system with minimal training Problem Statement The user interface must allow similar functionality to that of a standard personal computer system, while simultaneously allowing the greatest freedom of movement possible. Further, a display must allow the operator unobstructed view of the output while also allowing a view of his/her peripheral environment. Intended Users & Uses The intended operator for the design is a member of the United States Military. The workstation is intended to be installed on a watercraft or aircraft for military purposes. The design is intended for use by both males and females and is not age specific. Figure 5: Interior of a US military aircraft Measurable Milestones Problem definitions Technology considerations and selection End-product design End-product prototype implementation End-product testing End-product demonstration End-product documentation Design Constraints Must not interfere with user’s movements Must be able to draw power from platform Must fit between existing equipment Must be completed by May 2006 Assumptions Users will be familiar with the Windows XP User has use of both eyes User has full function of extremities Installation of Windows Powertoys Operating Environment Military Support Aircraft and Warships Confined spaces with large ambient noise Sheltered from the elements Secure area Resources Limitations Project budget Must not interfere with user’s duties System must not interfere with existing equipment Acknowledgements Dr. Arun Somani Dr. Zhao Zhang Lockheed Martin Hardware Items Cost EyeTop Display Glasses $0.00 MicroGyro 2-Axis Gyro $150.00 FireFox Throat Microphone $38.00 Dimax I2C Master Controller $80.00 USB Keypad $34.00 Total $302.00 Software Items Cost Windows XP Professional $0.00 NASA World Wind Dragon Naturally Speaking 8.0 Total Proposed Approach and Considerations Proposed Approach Research workstation technologies Select appropriate technologies Design to constraints and purpose of client Test final system prototype Technologies Considered Data display devices Tactile input devices Voice recognition Testing Considerations Testing usability by end user Testing system functionality Testing hardware/software compatibility Total Cost of Project Cost Total Without Labor $302.00 715 Hours at $12.00 per hour $8580.00 Total With Labor $8882.00 Figure 1: MG1101 MicroGyro The MG1101 MicroGyro is utilized as the movement sensor for the glove mouse-pointer system. This device was selected due to its small size and its ability to sense movement on two separate axes of motion at once. Figure 3: FireFox Throat Microphone The FireFox throat microphone is utilized to allow for voice driven data entry in an environment with heavy ambient noise. The microphone can be used in conjunction with the earphones/radios already in use on military platforms. Schedule Figure 2: EyeTop Display Glasses Figure 6: Project Schedule The display system is implemented by a pair of EyeTop glasses. The glasses have a single monocular display on the right side. The display glasses allow users to observe the computer screen without interfering with their duties. Figure 4: Dimax 12C Master Controller Closing Summary Control of the gyro and keypad is realized through the Dimax I2C master controller. This device allows the system to communicate with the gyro and keypad. Current computer workstations involve significant computer hardware in an enclosure usually placed in front of the operator, with environmental protection and maintenance being required. A less intrusive and smaller workstation than this standard would enhance the ability of military personnel to complete required tasks. By providing a chair-mounted computer workstation, the size and mobility will become assets rather than hindrances. The system will be designed specifically for tasks associated with military personnel while maintaining functionality and durability the operator currently uses. This project will maintain the efficiency and functionality of current workstations while making significant advancements in reducing size and allowing the operator more flexibility. Expected End Product and Other Deliverables User Manual Graphical User Interface for System Prototype of Input Peripherals Device drivers for peripherals Group Members Isi Oamen Electrical Engineering David Roberts Computer Engineering Shawn Yockey Computer Engineering Client Lockheed Martin Faculty Advisors Dr. Arun Somani Dr. Zhao Zhang Project May06-09 Website http://seniord.ee.iastate.edu/may0609