Gyro Cat Toy Ahmad Danesh Robert Grant Di Xu

1
Gyro Cat Toy Ahmad DaneshRobert GrantDi Xu
2
Overview

• Introduction
• The Gyro Cat Toy
• Test Results and Analysis
• Marketability
• QA

3
The Team

• Robert Grant President CEO
• Ahmad Danesh CFO CMO
• Di Xu CTO COO

4
The Problem

• Cats require sufficient exercise
• Decreases risk of diseases
• People carry out busy lives
• Existing toys are insufficient
• Not interactive
• Not automated
• Short life span

5
Our Vision

• Automated Cat Toy
• No Human Input

6
Possible Solutions

• Mechanical configuration

7
Possible Solutions

• Proximity Sensors
• Magnetism
• Ultrasonic
• Infrared
• RF

8
Possible Solutions

• Force Sensors
• Accelerometer
• Spring jerk sensor

9
Possible Solutions

• Controller
• Microcontroller
• PIC
• Digital Hardware Logic

10
System Components
11
Sensors

• RF Transmitter and Receiver
• Low power
• Short range transmission
• Low cost
• Jerk Sensor
• Low power
• Low cost
• High sensitivity

12
Actuators

• DC Motor
• Low power
• High torque
• Low cost
• H-Bridge
• 3V operation
• Low power
• Low cost

13
Controller

• Microcontroller
• Standby current
• Operational current
• Low cost
• I/O pins
• Processing Power

14
Pulse Generator

• Duty Cycle
• Generation 1
• 555 timer
• Problem Encountered
• Generation 2
• Lower power digital logic

15
TXM-418-LC

• Circuit Design
• No external circuits needed
• Output Power Level Adjust
• Problems Encountered
• Antenna
• Optimum
• Different types

16
RXM-418-LC-S

• Circuit Design
• No external circuits needed
• Low Power Sleep Mode
• Antenna
• Problems Encountered
• Pulse Recognition

17
RF Range Testing

• Omni-directional Transmission
• 3 Transmitter Antennas
• Power Level vs. Range
• Problems Encountered

18
MC68HC908QT4

• Attractive Properties
• Interrupt Driven State Machine
• Assembly Language
• Evaluation Board
• Problem Encountered

19
Software
20
Jerk Sensor

• Spring
• Pin
• Problems Encountered
• Pulse Widener
• Software Solution
• KB interrupt
• Input Capture

21
H-Bridge

• Generation 1
• Circuit design using 8 transistors
• Generation 2
• Fairchild FAN8200D

22
Motors

• DC Motor
• Low torque
• High current
• Geared Motor
• High torque, lower current
• Problems Encountered
• High current reset of MCU

23
Final Prototype

• Collar Piece

24
Final Prototype

• Toy Ball

25
Final Design

• Toy demo

26
Functional Analysis

• Ball Requirements
• 2 days operation without battery replacement
• Major axis lt12cm
• Minor axis lt7cm
• Powered by 3VDC
• Velocity of 35cm/s

27
Functional Analysis

• Collar Requirements
• Powered by 3VDC
• Functional for 695 days without battery
  replacement
• 60cm range for RF fully adjustable

28
Timeline
29
Costs

• Prototype Budget Spent
• Microcontroller 15 15
• Sensors 15 210
• Actuators 5 70
• Enclosure 10 10
• Batteries 5 10
• MCU
• Programmer 400 N/A
• RFID Programmer 400 N/A
• Misc N/A 60
• Total 850 375

30
Costs

• Estimated Production Cost
• (current design)
• Microcontroller 0.99
• RF Transmission 17.00
• H-Bridge 0.21
• Motor 4.00
• Enclosure 4.00
• Batteries 1.00
• Total 27.20

31
The Market

• Over 80 million cats in North America
• 80 cat owners buy presents
• Trends toward healthy lifestyle

32
Future Improvements

• Self designed RF transmission
• Cheap additions
• Ultrasonic
• Magnetism
• Infrared
• Smaller design
• Stronger and faster

33
QA

• Any Questions?