Presented by Freddy Rodriguez

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ICoRS
Intelligent Collision Response System
Week 2 System Design and Specs

• Presented by Freddy Rodriguez
• 02-07-07
• Group 2

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System Block Diagram

• UART
• Logical CPU
• Warning Indicator
• Z-Axis Acceleration
• Steering

• LIDAR Sensors
• Speedometer
• Hall Effect Sensor
• Tilt Sensor
• Physics CPU

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System Block Diagram
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LIDAR Sensors

• 10 LIDAR Sensors
• LIght Detection And Ranging
• 3 front, 3 per side, 1 rear
• Linear to 20m
• Current to Voltage
• 5-20mA to 0-10V
• Analog to Digital
• 0-10V to 12-bit binary
• Multiplexer
• 8µs per sensor
• 100µs Refresh Rate

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Speedometer

• Already in vehicle
• 3-bits per digit (MPH)
• gt99MPH disables system
• 6-bits total
• Parallel to Serial Conversion

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Hall Effect Sensor

• Absolute Angular Position
• Accurate to .01 degrees
• Analog to Digital
• Serial Protocol confusing
• Not shown in diagram

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Tilt Sensor

• Anti-Roll Kill Switch
• 2-Bits
• 0 if lt 15 degrees
• 1 if 15 degrees

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Physics CPU

• 8051 Architecture
• 33MHz
• Life Cycle
• Reads Sensors
• Wait for threat
• Determine Threat Level
• Kinematics
• Find Maximum Values
• Send data via UART

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UART

• Universal Asynchronous Receive Transmit
• Standardized Protocol
• Easy-to-use
• Built in Parity

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Logical CPU

• 8051 Architecture
• 12MHz
• Life Cycle
• Initiated by Physics CPU
• Receive Data via UART
• Choose Maneuver
• Control Actuators
• Evaluate Outcome
• Document Outcome

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Warning Indicator

• Threat Level Low
• LED
• Audio
• Voice

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Z-Axis Acceleration

• Threat Level
• Moderate
• Actuators
• Brake Servo
• Gas Servo
• Feedback
• Speedometer
• PWM
• Pulse Width Modulation
• Digital
• Generated by Logical CPU

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Steering

• Threat Level
• High
• Actuator
• Motor
• Feedback
• Hall Effect Sensor
• Analog
• Better sensitivity

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Steering
Steering

• Actuator
• Motor
• Feedback
• Hall Effect Sensor
• Analog
• Better sensitivity

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Power

• 35 Watts
• Max Values
• No Load on Actuators
• Less than Car Stereo (100-150W)

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Summary

• UART
• Logical CPU
• Warning Indicator
• Z-Axis Acceleration
• Steering

• LIDAR Sensors
• Speedometer
• Hall Effect Sensor
• Tilt Sensor
• Physics CPU

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Next Week

• Mathematics
• Kinematics
• Transfer Functions
• Algorithms
• Sensor Placement

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ICoRS
Intelligent Collision Response System
when seconds matter as much as your passengers.