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MSU ECE 4522 - Preliminary Slides

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Target Capture SystemTeam MembersTeam Member ResponsibilitiesDevelopment IncentivesDesign ConstraintsAbstractSlide 7Target Base StationTarget Base System CircuitryPreliminary Target StandMicrophone DetectionMicrophone Circuit for Initial TestInitial Test Shock Wave SignalShooter Base StationShooter Base Station CircuitryPalm Pilot Software DutiesDecoder / Encoder DP-2400Microcontroller PIC 16F877-20Transmitter / Receiver ManufacturersTransmitter / Receiver RTF3-433 / RRF1-433Transmitting Test Board SchematicReceiver Test Board SchematicTransmitter ReceiverWireless TransmissionEconomicsTimelineEnd of Semester DeliveryTarget Capture Target Capture SystemSystemTeam MembersTeam Members►Leader:Leader:Heath CauseyHeath Causey►Members:Members:Nobu FujiNobu FujiJosh WootenJosh WootenRenae WebbRenae Webb►Advisor:Advisor:Dr Robert ReeseDr Robert ReeseTeam Member ResponsibilitiesTeam Member ResponsibilitiesMembers Research Documentation WebsiteCircuit DesignProgrammingHeath CauseyX X  X XNobu FujiX X   XJosh WootenX X   XRenae WebbX X X  XDevelopment IncentivesDevelopment Incentives►Save rifle shooter enthusiasts time on Save rifle shooter enthusiasts time on the shooting rangethe shooting range►View at a glance a graphical View at a glance a graphical representation of bullet positioningrepresentation of bullet positioning►Provide wireless target display with a Provide wireless target display with a range up to 100 yardsrange up to 100 yardsDesign ConstraintsDesign Constraints►Operational at a distance of 100 yardsOperational at a distance of 100 yards►Bullet position measured within ½ inch Bullet position measured within ½ inch of actual locationof actual location►Operate using a 9V batteryOperate using a 9V battery►Contain collapsible standContain collapsible standAbstractAbstract►Design circuitry to detect time differences Design circuitry to detect time differences of shock waves of a passing bulletof shock waves of a passing bullet►Design a transmitter and receiver for logic Design a transmitter and receiver for logic of triangulated time differencesof triangulated time differences►Develop software for conversion of time Develop software for conversion of time differences into positioning coordinates differences into positioning coordinates ►Display bullet positioning on a Palm PilotDisplay bullet positioning on a Palm PilotTarget Capture SystemTarget Capture SystemTarget Base StationTarget Base Station►Measure time differences of shock Measure time differences of shock waves with use of microprocessorwaves with use of microprocessor►Convert time differences into 5V CMOS Convert time differences into 5V CMOS logiclogic►Encode binary shock wave timesEncode binary shock wave times►Send times to shooter base station via Send times to shooter base station via wireless RF communicationwireless RF communicationTarget Base System CircuitryTarget Base System CircuitryPreliminary Target StandPreliminary Target StandMicrophone DetectionMicrophone Detection►Bullet creates a shock waveBullet creates a shock wave►Microphones will detect Microphones will detect leading edge of the shock leading edge of the shock wavewave►Different shock wave arrival Different shock wave arrival times will be taken between times will be taken between each microphone each microphone ►Time differences will be used Time differences will be used for triangulation calculation for triangulation calculation for bullet locationfor bullet locationAjay Mahajan and Maurice Walworth, Ajay Mahajan and Maurice Walworth, IEEE IEEE Transactions on Robotics and AutomationTransactions on Robotics and AutomationMicrophone Circuit for Initial Microphone Circuit for Initial TestTestLM741 Operational AmplifierInitial Test Shock Wave SignalInitial Test Shock Wave SignalShooter Base StationShooter Base Station►FM receiver module will collect time FM receiver module will collect time differencesdifferences►Decoder will decode the logic time Decoder will decode the logic time differences and send to logic converterdifferences and send to logic converter►Serial port communication will allow Serial port communication will allow interfacing with the Palm Pilotinterfacing with the Palm PilotShooter Base Station CircuitryShooter Base Station CircuitryPalm Pilot Software DutiesPalm Pilot Software Duties►Convert the time differences from Convert the time differences from binary to base 10binary to base 10►Calculate bullet position for target Calculate bullet position for target displaydisplay►Display position coordinates & bullet Display position coordinates & bullet velocityvelocity►Display up to 5 different shots per Display up to 5 different shots per targettargetDecoder / EncoderDecoder / EncoderDP-2400DP-2400►Completely encapsulates Completely encapsulates encoding/decodingencoding/decoding►Operates at 2.4Kbytes per secondOperates at 2.4Kbytes per second►Switches from a decoder to encoder Switches from a decoder to encoder according to the voltage of the according to the voltage of the selected pinselected pin►Compatible with the PIC 16F877 chipCompatible with the PIC 16F877 chipMicrocontrollerMicrocontrollerPIC 16F877-20PIC 16F877-20►Abundance of I/O pins and memoryAbundance of I/O pins and memory►Provides a fast instruction rate cycle of Provides a fast instruction rate cycle of 20MHz20MHz►Can be electronically erasedCan be electronically erased►Versatile for beginning PIC Versatile for beginning PIC programmersprogrammersTransmitter / Receiver Transmitter / Receiver ManufacturersManufacturersManufacturer ModelRange*(ft)Voltage(V)Current (mA)Power (mW)Cost ($)Abacom RTF3-433 600 5 8 40 8.91 Linx Technologies TXM-433-RM 800 6 6 36 16.21 Radiotronix RCT-433-AS 300 3.00 5 15 N/A Radiometrix TXM-433 600 6 6 36 N/A RF Monolithics TX5000 ** 3 12 36 N/A*Tests performed in optimal conditions **Short distanceTransmitter / ReceiverTransmitter / ReceiverRTF3-433 / RRF1-433RTF3-433 / RRF1-433►Data rate up to 9.6/2.4 Kb per secondData rate up to 9.6/2.4 Kb per second►Up to 175 yard rangeUp to 175 yard range►Legal frequency of 433 MHzLegal frequency of 433 MHz►Low power consumptionLow power consumptionTransmitting Test Board Transmitting Test Board SchematicSchematicReceiver Test Board SchematicReceiver Test Board


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MSU ECE 4522 - Preliminary Slides

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