LIGHTING CIRCUIT

1
LIGHTING CIRCUIT

• 2 separate 35 Watt lighting circuits
• Controlled by relay and microcontroller
• Variable frequency of 5 10 flashes per second

2
RELAY CONTROL CIRCUIT
Problem Magnetic coil relay Control circuit
was used to isolate from microcontrollerFeed
back remained a problemSolution Solid state
relayNo physical connection between source and
output
3
AUDIO CIRCUIT

• Audio Circuit TDA2005 Integrated Chip
• 10 Watts per Channel
• Voltage Gain of 3

4
AUDIO-FREQUENCY RESPONSE
Logarithmic Scale of Audio Response5 Volt Input
15 Volt OutputDeclines 3 dB/decade at 22 kHz
5
Testing - General

• Functional Testing of complete system
• Motion detector object testing
• Distance and Frequency of output noise
• Field Testing
• Effectiveness of selected noises
• EMI and Impulse Response
• Environmental

6
Sound Intensity Test

• Spectrum analyzer resultsFrequency sweep from 8
  kHz to 40 kHzApplicable intensity between 88 dB
  and 90 dB

7
Progress

• Functional Test
• Motion Sensor
• Audio
• Lighting
• Microcontroller
• Packaging and Mounting
• Field Testing
• Output parameters and adaptability
• Environmental
• Future Development and Cost Reduction
• Manufacturability
• Ethical
• Health and Safety

8
PROTOTYPE COSTS
PART Low Qnty Cost Quantity Total
Power Supply 10 1 35.00
Transient Voltage Suppressors 6.08 1 4.23
Speakers (pair) 6.99 1 6.99
TDA2005 Op-Amp 2.84 1 2.84
Lighting Components 25 2 20.00
Enclosure 25.46 1 25.46
PIC18xx2 8.08 1 8.08
EEPROM 4.62 2 9.24
Motion Sensors 18 2 36.00
RS232 4 1 4.00
DAC-MAX517 5 1 8.86
Circuit Board 3 1 3.00
Relay 1 1 8.00
Miscellaneous Parts 9.00
TOTAL TOTAL TOTAL 180.00
9
Future Developments

• Photo sensor
• Primary voltage as a power source
• Additional sound generation and predator noise
• Data Log
• Wireless communication
• Battery Backup