Multiple Function Security System

INTRODUCTION & APPLICATION● 4 functions in on system:

– Light Detector– Contact Detector– Motion Detector– Pressure Detector

● Make a security system that would protect any valuable part of the house.

● Each detector can be used in different part of the house for different purposes.

– Light detector can be placed in a cabinet or a drawer.

– Contact detector can be placed on a door handle.

– Motion detector can trigger any motion in the house or the backyard.

– Pressure detector can be placed under a doormat.

● All of these sensors can trigger an action such as a light or a video camera, etc.

SPECIFICATIONPart 1 : Light Detector:

•On / Off Switch•LED Light sensor•MAL 12 phototransistor

Part 2 : Contact Detector: •On/ off switch•LED•Contact Plate ( 2.5 X 2.5)SI

Part 3 : Motion Detector:•On/Off switch•KC778B (20 pin DIP)•Voltage regulator 78L05•Fresnel Lens with diameter of 1/2 an inch•Detection range: 3m- 4 m. •View Field is 125 degree •3 Controllers:

•Motion sensitivity control PIR•Time Control (time Adjustment) from 1.5 sec to 15 sec.•Daylight sensitivity control

Part 4: Pressure Detector: •4 Pressure sensors (832)•Load range: .001pound- 100 pound.•4 LEDs “indicators” each sensor

Part 5: Response Circuit:•Different LED•Different buzzers for each detector

BLOCK DIAGRAM

Power Supply

Response CircuitsPressure Response

Circuit

Main Switch

MotionDetector(TimeAdjustment,Daylight &MotionSensitivities)

ContactDetector

LightSensor

PressureDetector

SYSTEM LAYOUT

LAYOUTS

1- Light Detector LD 2- Contact Detector CD 3- Motion Detector MD

4- Response circuit, LD,CD,MD 5- Response Circuit, Pressure detector