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3D road mapper MID presentation Annual project (Part A) Semester 2014b. Students: Hen Markovich Aharon Ya’akov Supervisor: Boaz Mizrahi. Introduction - Mobiwise. 3D Road mapping. Learning the specific vehicle performance. Prediction of the expected path. - PowerPoint PPT Presentation
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3D road mapperMID presentation
Annual project (Part A)Semester 2014b
Students: Hen Markovich Aharon
Ya’akov
Supervisor: Boaz Mizrahi
Introduction - Mobiwise
• 3D Road mapping.
• Learning the specific vehicle performance.
• Prediction of the expected path.
• Computing the optimal fuel consumption.
• Real time indication to the driver.
The main goal - fuel saving by a unique method:
Block diagram
Barometer
Accelerometer
Flash
EEprom
Micro controller
Vehicle computer
Analog entrances
Host(+GPS)
Main database
Android app
HUD
General view
OBD
HUD
Android app
Our project is here
Project goal• Design and product a hardware for this application.
• The HW will be divided to two separated boards:
a. The main board which contains the microcontroller, the sensors and memory.b. A peripheral board which contains the connections to the OBD, the host and the power supply.
• The first module is the “vehicle processor” and this is the component that should be sold.
• The second module will be the base for exemplification and debug.
• The two boards should be packed into a small size plug.
Detailed schema
Bluetooth
UART
Cellular
MCU
UART/USB
I 2C
I 2C
Microcontroller
Sensors Pressure sensor
Accelerometer
HS CAN Transceiver
Power
DC/DC LDOVehicle Battery – 12/24 V
5 V 3.3 V
OBD II – 16 pinsCAN High
CAN Low
Tx/Rx
Memory
Flash
EEPROMSPI
SPI
Wireless Bluetooth module
UART/SPI
3.3 V
HUD
Host (+GPS)
Main database
Analog
Fuel level
Ignition
BatteryDebug
ICSP
Components BarometerSmall, low cost, accurateDigitalLess than 1m resolution
Flash memory256MBit.SPI interface.
Bluetooth moduleContains an integrated antenna.UART interface.
AccelerometerDigital accelerometer at 3 axisSmall, low cost1mg accuracy
EEPROM256KBit.SPI interface.
CAN TransceiverProvides interface between CAN protocol controller and differential CAN BUS.
PIC MicrocontrollerCAN controller for CAN protocol.CAN, UART, USB, SPI & I2C interfaces.
MCU MicroChip PIC32MX795F512H
• Internal memory• 512KB Flash ROM• 128KB RAM
• Max speed: Up to 80MHz
• Ports: SPI, I2C, CAN, UART, USB
• Modes: Run, Idle, Sleep
• Size: 10X10X1 mm
Sensors• Barometer Bosch BMP180
• Measures height from -500m to +9000m• Measure accuracy of 17cm• I2C interface
• Accelerometer Freescale MMA8451Q
• Digital accelerometer at 3 axis• Max resolution of 1/4096 g• Self test mechanism• I2C interface
Memory• EEPROM MicroChip 25LC256
• 256Kb• Max clock: 10MHz• SPI interface
• Flash Micron N25Q256A
• 256Mb• Max clock: 108MHz• SPI interface
Power supply • Vehicle battery – 12v/24v
• The system must get a constant power supply Independently with the battery voltage.
• The HS CAN Transceiver needs 5v supplied by a DC/DC converter.
• All other components need 3.3v supplied by Concatenated LDO.
• Both devices are adjusted by a simple voltage divider.
What we did until now?• Learning:
• Market research• Parts• Protocols
• Orcad design• Main parts design• Electrical design• Logical design
• Mechanical design (in process)
ScheduleLearning 23.3 – 5.4Characterization 6.4 – 19.4Orcad Design 20.4 – 24.5Mid Semester Presentation 25.5 – 1.6Finish the logical design 1.6 – 6.6and mechanic design Circuit edition 8.6 – 27.6Production 22.6 – 13.7Assembling 15.7 – 19.7End of part A