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Published byGwenda Wilkinson Modified over 9 years ago
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Project: PDA Smart Car Integration via Bluetooth Team: Team Blue Members: Sharad Desai, Mahmoud Toure, Lochan KC
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10/30/2015University of Colorado -- Boulder2 Agenda Points to be covered Overview Objective Outline Implementation of Sub-Systems Division of Labor and Responsibilities Schedule Budget Risks and Contingency Conclusion AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder3 Overview AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder4 Objective Goals Use Bluetooth to control simple car functions Functions include Locking/unlocking car doors Opening/closing windows Remote ignition Any 12V accessory Extensions Tap into the I 2 C bus and control systems like AC and a proximity sensor AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder5 Outline AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder6 Implementation – Hardware Assembly Hardware elements Smartphone FPGA Bluetooth receiver Relay driver AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder7 Implementation – Smartphone Functionality Operating System: Microsoft Windows Mobile 5.0 for Smartphone CPU: 32bit Texas Instruments OMAP 850 @ 195 MHz ROM: 64 Mb with 17.9 Mb accessible RAM: 64 Mb with 45.1 accessible AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder8 Implementation – Bluetooth Receiver Functionality Class 1 Bluetooth Radio Modem(Range 100m) Low power consumption : 82.5mW Encrypted connection Frequency: 2.4~2.524 GHz Operating Voltage: 3.3V-6V Serial communications: 2400-115200bps Built-in antenna WRL-00582 - Bluetooth Modem AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder9 Implementation – FPGA Functionality Xilinx Spartan-3 FPGA w/ twelve 18-bit multipliers, 216Kbits of block RAM, and up to 500MHz internal clock speeds 3x32 open 3.3V I/O ports Three high-current voltage regulators (3.3V, 2.5V, and 1.2V) RS232 serial output Benefits Higher Performance Lower Cost Provides the scalability to add functionality without having an impact on the rest of the system AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder10 Implementation – Relay Driver Functionality Provides Either Positive Trigger(+12V) or Negative trigger( 500 mA). Base of the BJT is connected to one of the I/O of FPGA Contacts of the relay is connected to Car Relays. I/O Car Relay AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder11 Output From BECU Pin 1 Output From BECU Pin 2 Door Solenoid Implementation – Relay Driver Installation Setup for Door Relays AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder12 Implementation – Software Assembly Software elements API for Smartphone Written in.NET Uses internal Bluetooth to communicate with MCU Finite State Machine (FSM) for FPGA Written in VHDL AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder13 Division of Labor and Responsibilities Tasks and people responsible Sharad Desai Setting up communication between the two Bluetooth modules Design PCB board/power supply Writing documentation Lochan KC Writing FSM on FPGA Writing driver Building relay driver Writing documentation Mahmoud Toure Writing API and UI Writing documentation AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder14 Schedule AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder15 AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion Budget Breakdown Cost for Project Bluetooth Modem$70 Spartan 3 FPGA board$200 Car Door$300 Miscellaneous$300 Car Battery$80 TOTAL$950
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10/30/2015University of Colorado -- Boulder16 Risks and Contingency Plan -- Overview Risks (followed by contingency plan) Unfamiliar with I 2 C bus technology Scale project down to basic functionalities (i.e.: unlocking and locking doors and windows) FPGA may be too complex Minimize state machines (yet still maintain correct functionality) Bluetooth complexity Ask around and do more research Portability of API Limit to PDA compatible with Java or Windows CE AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder17 Risks and Contingency Plan – Safety Safety issues Blowing various sections of any circuit We should wear high fashion protective goggles Tampering with the car to figure out how mechanisms work Get someone who knows what they’re doing Transmitting bogus messages to the Bluetooth receiver Not goof off AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder18 Conclusion AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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10/30/2015University of Colorado -- Boulder19 Questions and Comments AgendaOverviewObjectiveOutlineImplementationLabor DivisionScheduleBudgetRisksConclusion
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