HELMET tracking system (HTS)

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HELMET tracking system (HTS). Group 8 Andrés F. Suárez (EE) Brian Maldonado (EE) Rígel Jiménez (EE). Motivation. HTS. Goals and Objectives. Adding electrical components to the helmet without significantly increasing the weight.
HELMET tracking system(HTS)Group 8Andrés F. Suárez (EE)Brian Maldonado (EE)Rígel Jiménez (EE)MotivationHTSGoals and Objectives
  • Adding electrical components to the helmet without significantly increasing the weight.
  • Keeping the helmet as spacious as it was originally, even though it will now havethe electronic components.
  • Being able to synchronize the helmet to a cell phone.
  • Implementing an accelerometer to the helmet.
  • The system will be able to send text messages.
  • SpecificationsHelmet Tracking System (HTS)Bluetooth ModuleRN-52 Bluetooth Audio Module
  • Wireless communication used to connect the HTS system to a cell phone (Supports iAP profile)
  • Bluetooth 3.0
  • class 2 Audio Module
  • UART console interfaces
  • Operation range: 10 meters (33 feet)
  • Supplied voltage: 3.0 ~ 3.6 V DC
  • Dimensions: 26.0 x 13.5 x 2.7 mm
  • Frequency band: 2.4 ~ 2.48 GHz
  • Maximum Data Rate: 3Mbps
  • Embedded Stack Profiles: A2DP, AVRCP
  • Built-in Antenna
  • Price: $ 24.95
  • High-quality, 2-channel audio streaming.
  • Wireless stereo headsets.
  • Wireless speakers.
  • Intercom push-to-talk audio connection
  • Automotive hands free audio
  • Remote control for media player.
  • Computer accessories
  • Accelerometer ModuleADXL345 AccelerometerAccelerometer Registers and FunctionsRegisters
  • 8-bit register addresses ranging from 0x00 to 0x39
  • Sets the specs for the interrupts and contains serial, and bandwidth selection.
  • Contains a total of 14 different interrupt functions.
  • ADXL345 AccelerometerThreshold Calculation:4 g256 bits converted to HEX = FFGPS ModuleLS20031 GPS ModuleLS20031 GPS Pin Assignment and DescriptionsGSM ModuleSM5100B GSM ModuleAPPLICATION:
  • Sends SMS messages with corresponding GPS coordinates.
  • Dimensions: 35.0 x 39.0 x 2.9mm.
  • Power: 3.3 – 4.2 V. Nominal 3.6 V.
  • Current consumption: <100 μA when module is off; and 2 mA in Sleep mode.
  • Quad-band GSM.
  • Frequency Bands: 900,850,1800,1900 MHz.
  • Supports UART interfaces.
  • Supports SIM (Auto Recognize).
  • Soldered connection for antenna.
  • LED to notify network status.
  • Price: $59.95
  • SM5100B Functional Block DiagramMCUMicrocontroller SelectionATMEL ATmega328
  • Primary means of control between system and subsystem peripherals.
  • Soft Serial Library included to communicate with multiple devices.
  • ATMEL ATmega328BatteryHTS Power SourceUltralife Lithium-Ion Battery 1800 mAhHTS Power Source
  • All devices will be in sleep mode during operation except for the Bluetooth.
  • HTS Recharge Circuit
  • Lithium Ion/Polymer Batteries require special charging
  • If not charged the proper way it could ruin the battery
  • Lithium Ion/Polymer USB Battery Charger IC - MAX1555
  • External Supply of 3.7V to 7V
  • Will recharge battery through USB connection
  • Max current charge of 300 mA
  • HTS EagleCAD SchematicHTS PCB DesignDimensions: 3.39 in X 3.08 in Price: $37.5Scenario 1- Reporting an AccidentScenario 2 – Respond from Emergency ContactThis Scenario follows the same steps as scenario 1 with added functions. Distribution of Work LoadMilestoneBudgetDifficulties
  • Getting both audio input and output from the Bluetooth module.
  • Getting proper voltage to all the modules.
  • Soldering very small components.
  • Questions?
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