Team KANG Team KANG Group 1 Group 1 System Block Diagram System - - PowerPoint PPT Presentation

Theory of Operation and Hardware Design Narrative Theory of Operation and Hardware Design Narrative and Preliminary Schematic Drawing and Preliminary Schematic Drawing

Team KANG Team KANG Group 1 Group 1

System Block Diagram System Block Diagram

Major components: Major components:

• Microcontroller

Microcontroller

• DSP

DSP

• Video camera

Video camera

• memory

memory

Major Components Major Components

DSP DSP

• reads raw video stream from camera

reads raw video stream from camera (8 data bits + 3 clock bits) (8 data bits + 3 clock bits)

• retains several frames in memory

retains several frames in memory (19 address bits + 8 data bits multiplexed on 19 (19 address bits + 8 data bits multiplexed on 19-

• bit bus)

bit bus)

• sends positioning coordinates to microcontroller

sends positioning coordinates to microcontroller (small serial bus) (small serial bus) Main Microcontroller Main Microcontroller

• Handles I/ O with user

Handles I/ O with user interface and peripheral interface and peripheral devices, including motors, devices, including motors, motion sensors, and fire motion sensors, and fire control control

Major Components Major Components

Parts Parts f ( MHz) f ( MHz) Vdd Vdd ( V) ( V) Packaging Packaging 9s12 microcontroller 9s12 microcontroller 8 8 5.0 5.0 32 32-

• pin DIP module

pin DIP module DSP56371 DSP56371 150 150 3.3, 1.25 3.3, 1.25 80 80-

• pin LQFP

pin LQFP RAM RAM 25 25 3.3 3.3 44 44-

• pin TSOP

pin TSOP

External Peripherals External Peripherals

• Video display (computer window or

Video display (computer window or standalone television standalone television – – standard standard television signal output from television signal output from camera module) camera module)

• Multiplexed IR motion sensors to

Multiplexed IR motion sensors to activate camera (3x1 bit GPIO) activate camera (3x1 bit GPIO)

• IR receiver for remote emergency

IR receiver for remote emergency shut down (2 bits GPIO) shut down (2 bits GPIO)

• UI for manual pan/ tilt/ fire (four

UI for manual pan/ tilt/ fire (four bits GPIO) bits GPIO)

• Servo/ stepper motors for pan/ tilt

Servo/ stepper motors for pan/ tilt control (3x1 bit PWM) control (3x1 bit PWM)

• DC motor for fire control (one bit

DC motor for fire control (one bit GPIO + MOSFET) GPIO + MOSFET)

Minor Components Minor Components

Voltage regulators Voltage regulators

• 5.0, 3.3, 1.2

5.0, 3.3, 1.2 Vdd Vdd requirements requirements Level translators Level translators

• Camera, microcontroller, DSP, RAM use different operating

Camera, microcontroller, DSP, RAM use different operating voltages voltages Motor controllers Motor controllers

• Not all motors can be driven directly by microcontroller

Not all motors can be driven directly by microcontroller Passive Components & Miscellaneous Passive Components & Miscellaneous

• Bypass capacitors, oscillator circuit, headers/ connectors,

Bypass capacitors, oscillator circuit, headers/ connectors, arc arc-

• suppression diodes, motor control

suppression diodes, motor control MOSFETs MOSFETs

Circuit Schematic (microcontroller) Circuit Schematic (microcontroller)

• Microcontroller
• Level translator
• Motor controller
• Serial header

Circuit Schematic (DSP and RAM) Circuit Schematic (DSP and RAM)

• DSP
• RAM

Circuit Schematic Circuit Schematic (Headers and Level Translators) (Headers and Level Translators)

• Level translators X2
• DSP breakout headers
• Video interface header

Circuit Schematic (sensor interface) Circuit Schematic (sensor interface)

• Op-amps
• Transistors

Circuit Schematic (Power) Circuit Schematic (Power)

• Voltage regulators
• Power jacks