Design Specifications for Engineering Project

Design judicial admissions for Engineering reckonIntroductionFor large development projects, defining the problem becomes the development of aspiration specifications. Typically, development project are complex, involving a number of people from various disciplines working toward the same goal. This chapter discusses the following topic that describe the process and the brilliance of developing design specificationstipulations of a Design General rendering stipulation of Material roofy Simulation Specification Cost Specification 3.1. Specifications of a Design Specifications are nothing much than a ceremonious document listing the destinys of a project. The opinion of the project is to energy product through and through and through flooring, which is built with piezoelectric technology, the electric energy created by the lading of human footsteps walking around from place to place, which is caught by floor piezoelectric sensors and fetch compressed and decompressed, then energy is stored and utilized as a power source. The figure (x) here represent the structure of the energy gather design in the form of blocks.3.2. General Description The author has tried and true to evaluate when a full amount of weight is sensed by the piezoelectric sensors mount on a platform, and the potentials which generated will be stored in the Battery. The Battery which is charged, further connected to the Mobile Charging Circuit board as appliances. Board consists a USB point, where occasionrs may connect cables to charge a lively phone from the battery charged.The arrangement also consists a 12-volt power allow adapter with electric potential regulator, which will result to the monitoring duty tour found on a microcontroller to monitor the output voltage which generated across the sensors utilise potential divider physics. The level of a voltage generated and whenever human walks through platform the count of the footsteps is to be save and presentationed on the liquid crystal display.LEDs require DC supply to operate. A string of LEDs is mounted below the platform (floor) when the voltage generated by the weight of human footsteps the LEDs will be blink through the microcontroller circuit.Consequently, the voltage which generated using energy harvesting gubbins Piezoelectric big businessman times System is can be utilized within distinguishable appliances mobile charging, street or corridor lighting, bus or airports station lighting, nightclubs, sylvan areas, charging technologies for electric vehicles, etc. The more(prenominal) power could be generated using the similar technique researchers are investigating in piezoelectricity for bigger designs.3.3. Specification of MaterialThe minimum requirements of materials to build an energy harvesting eddy is illustrated belowStatement Of MaterialComponent NamesignificanceQuantity ohmic resistances 10K52.2K1100K1330K210K POT.1 electrical condensers10 uF/63V233 PF2470 uF/35V1Integrat ed CircuitsATMEGA 328178052IC Bases8-PIN1Transistor BC 547 (NPN)1DiodesIN40072Bridge Diode2MiscellaneousPiezoelectric Sensor8 crystallization 16MHz1LCD 16-21Burge divest 16 Pin-male1LED Strip1RED LED32-Pin Push Button1USB CONNECTOR1PCB CONNECTOR 2-Pin1Weighing Machine surface112 Volt Adaptor1USB Wire1Lead Acid Rechargeable Battery 12 VoltPrinted Circuit BoardSoldering WireConnecting Wire3.4. Circuit Simulation Specification The figure (x), show the schematic diagram for Piezoelectric Power Generation System Utilizing of Human Footsteps. The schematic diagram is constructed through circuit role model software Proteus Design Suite, which is an Electronic Design Automation dickhead including schematic capture and PCB layout modules. circuit simulators allow the circuit designer to call in a circuit schematic and simulate circuit operation on a personal computer. Circuit simulators provide a very diligent and easy way to evaluate a kick downstairsicular design theory without usi ng expensive test equipment or having to procure parts and fill a breadboard.The shares short-term justifications of the system are specified below and more in details will found in the further chapter.Resistor (R)The circuit diagram of the device has 10 resistors and that having different values which 10K, 2.2K, 100K, 330K, and 10K POT. The requirement of this resistor in the circuit is to create specified values of the ongoing and voltage. So, its used to oppose an electric current by producing a voltage drop between its terminals in proportion to the current.Capacitor (C)The function of the condenser is to store power in form of an electric field and is called as a ceramic disc with some features like high stability. The circuit of a device has been provided with five capacitors with a value of 10 uF/63V, 33 PF, and 470 uF/35V. And to operate the crystal its specified frequence capacitor is used in circuits.TransistorsA transistor is a device which is used to make a change in large output with respect to the small insert applied to it. In a circuit, 3 terminals BJT (bipolar junction transistor) is used. By the use of the transistor, control large signal at another pair by just applying small introduce at another pair. Also, it can be used as a switch with the help of small input current as it is a current control device.IC-RegulatorIC is an merged circuit used in various applications. In timing device product used 7805 IC as a 5v voltage regulator. sometimes there is a voltage fluctuation and so it could not get fixed output voltage. So this 7805 IC provides regulated power supply. The master(prenominal) advantage of this IC is to give constant output voltage heretofore there is a variation in input. Also, current limiting aegis is provided in IC itself and for other parts of the circuit as well.Crystal OscillatorsCrystal Oscillator is a device that used in electric circuits in order to create an electrical signal with an accurate frequency. The need for the frequency of the circuit is to keep the path of the time in quartz and provide a stable signal for the device.Seven Segments DisplaySeven segments display (LCD) is a device that utilized for displaying the status of the circuit. The features of the seven segments display are that it operates in low current. The display will show the status of the device Level of the voltage generated, and whenever human walks through platform the count of the footsteps is recorded and displayed.Piezoelectric SensorsPiezoelectric Sensors also a device, utilize to generate the electrical energy converting different sources. (E.g. Kinetic, Mechanical energy). When a force is applied on a piezo material, a charge is generated. These devices consist an 8 Piezoelectric Sensors which mounted below the platform and convert the human footstep energy into electrical energy.3.5. Cost Specification This percentage is one of the most important section and often that is overlooked. This section det ermines the potential for the financial success of the project. when considering all the skillful details, its easy to overlook that the cost of development and the manufacturing cost are polar to the project success. As such, they must be identified as part of the specification in a compact statement.After research of components necessitate to harvesting the Piezoelectric Power Generation System Utilizing of Human Footsteps, it is judge to fall within the 90 budget. With research the specifications required for the key component excluding postage. Equipment that will be required within the budget includes Resistor (R), Capacitor (C), Transistors, IC-Regulator, Crystal Oscillators, Seven Segments Display and Piezoelectric Sensors. However, these are all relatively low cost. Facilities required to develop the project including software are easy at no costs for the schematic circuit design.SummaryHaving finished the design specification, let us note what has been accomplished a nd the steps that light upon those accomplishments. The following steps can be used as signpost for completing the design specification in any project secernate the design problem into smaller modules. complete a block diagram.Do research on area relating to each design problem. gather more information.Develop a cost budget.Apply creative thinking complete(a) a schematic design.The blank pieces of paper at the beginning of the chapter presently have many schematic symbols with their associated circuit traces. The next step involves the plectrum of the physical components and breadboarding.