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Phase 3 Hussain Almosa Karen Littlejohn Joey Nirschl Hassan Hassan Our client is looking for additional interactive workstations that would demonstrate to the audience how the concepts from the Electrical and Computer Engineering (ECpE) Department curriculum at ISU solve real world challenges to assure a better and more sustainable future. Operating Environment ◦ Reasonable, stable temperature room ◦ Stable environment ◦ Open to public Intended Users ◦ Grade School age and up ◦ Have limited to no prior knowledge about topics Adding two modules to the Science Center in 1212 Coover Piezoelectric Floor - To demonstrate that we can harness the mechanical energy from unconventional sources, such as people, in the form of electrical energy Sequential Programming - To demonstrate and create more understanding of the concept of programming Room to promote interest in Computer, Electrical, and Software Engineering Video We designed the Dance Power Block as a prototype and proof of concept for our application of harnessing mechanical energy through piezoelectricity. In the future, the block can be replicated to build a dance floor with different forms of display. • • • • • The Dance Power Module shall generate enough current to power a small LED bulb. The Dance Power Module shall support a weight of up to 200 lb. The Dance Power Module shall be raised from the room floor. Shall be visually appealing. Shall be quickly understandable and easy to use. Use latest version of Java Runtime Environment Interface with a WiiMote Only administrator users shall be allowed to configure the volume. Shall be quickly understandable and easy to use without a demo. Shall give the user a taste of programming. Cost of piezo-generators too expensive Piezo generator supplies insufficient power Limited sources and literature on piezoelectricity Bluetooth implementation with Java Integrating WiiMote in with Java Spring 09: ◦ Project Plan – end of Feb ◦ Details and all parts picked out – end of Apr ◦ Parts ordered – end of semester (May) Fall 09: ◦ Prototype built and working – middle of Oct ◦ Testing and refining – start of Dec Clear Lexan Case – supports up to 200 lb Compression Subsystem – transfers mechanical energy to generator Piezo Generator – supplies power to display LED Visual Display – enables user interaction Electrical Circuit – modulates voltage to safely power LED • • • • Structural Analysis for support of stresses on floor Safety analysis Analysis of circuitry for voltage and current produced Experimental User Interaction Background code to parse XMLs GUI code to display to user XML to store Program Options XML for each available program on the module GlovePIE program running in the background to convert WiiMote Input into Mouse controls Have the program working Had to change our design a little bit to get WiiMote Input working Can interact with the program and navigate through with the WiiMote • • • 3 JUnit Test Classes (1 for each background class), 30 tests total Boundary testing on limits of the programs Experimental User Interaction Estimated Cost Parts Cost $600 Labor / Hour $10.50 Total Labor Hours 700 Total Labor Cost $7350 Total Cost: $7950 Testing Planning 8% 5% Implementation 25% Design 50% Documentation 25% About piezo-electricity About how WiiMotes work Importance of constant and effective communication Engineering Design Process There is a 4th phase to this project that is working to add more modules and finish up the room. WiiProgram could use a few more xml sample programs written. Expanding Piezo-electricity Floor for more modules