Wireless Security System Group #14 Yuncheng Wang Chris Overcash John Petty Chun Hong Lin.
-
Upload
jason-horton -
Category
Documents
-
view
219 -
download
2
Transcript of Wireless Security System Group #14 Yuncheng Wang Chris Overcash John Petty Chun Hong Lin.
Wireless Security SystemWireless Security System
Group #14Group #14Yuncheng WangYuncheng Wang
Chris OvercashChris Overcash
John PettyJohn Petty
Chun Hong LinChun Hong Lin
IntroductionIntroduction
EfficiencyEfficiency– no cabling requiredno cabling required– can be monitored from mobile devicecan be monitored from mobile device
ReliabilityReliability– camera more self sufficientcamera more self sufficient– less chance of cabling being cutless chance of cabling being cut
Block DiagramsBlock Diagrams
Pow er
Regulate 5V Pow er
Image
Motion
AquireImage
AquireSensor
Data
ProcessImage and
SensorData
TransmitImage and
SensorData
Heat
RF Signal
Block DiagramsBlock Diagrams
Pow er
Convert Datato USB
Transmission
ReceiveImage and
SensorData
Heat
RF Signal
ComputerData
Motion DetectorMotion Detector
Slim Line PIRSlim Line PIR – 50 x 50 ft. coverage
Advanced
– RF protection up to 1GHz
– Enhanced high & low
– Temperature compensation
Range of DetectorRange of Detector
Has 34 beams in Has 34 beams in 3 detection layers3 detection layers
Optional lenses Optional lenses allow 10x90 ft allow 10x90 ft (3x27m) coverage(3x27m) coverage
How the Detector WorksHow the Detector Works
Object Breaks Object Breaks multiple PIR multiple PIR beams.beams.
The PIR will have The PIR will have an output signal as an output signal as shown.shown.
This signal will be This signal will be used to tell the used to tell the camera to take a camera to take a picture. picture.
CameraCamera
Black and WhiteBlack and White CMOSCMOS 8 pixel digital 8 pixel digital
output resolution output resolution Min illumination 1 Min illumination 1
lux lux
CameraCamera
Resolution : 384 x 288 pixels
Programmable frame rate (0.5~50 fps)
PIC ChipPIC Chip
Parallel to Serial Parallel to Serial interfaceinterface
625 kbps625 kbps Universal Serial BusUniversal Serial Bus Universal Universal
Synchronous Synchronous Asynchronous Asynchronous ReceiverReceiver
TransceiverTransceiver
Transmits the image to the laptop Transmits the image to the laptop computercomputer
Spread Spectrum Frequency HoppingSpread Spectrum Frequency Hopping 2.402 - 2.478 GHZ.2.402 - 2.478 GHZ. Data rate 882KbpsData rate 882Kbps Range of 300 ft. indoors, Range of 300 ft. indoors,
3000 ft. outdoors 3000 ft. outdoors
Universal Serial BusUniversal Serial Bus
Plug and Play capability Distributes electrical power Bi-directional data flow Full duplex communication
ComputerComputer
Min. Requirements– 133 MHz 133 MHz
– 32 Megs Ram32 Megs Ram
– Windows 95 with Windows 95 with USB supportUSB support
– 800X600 pixel 800X600 pixel displaydisplay
– 256 color 256 color
Computer and SoftwareComputer and Software 2 gigabytes of free hard drive space.2 gigabytes of free hard drive space. Small and light enough to carry around Small and light enough to carry around
easily.easily. Durability due to rough handling.Durability due to rough handling. The software must be :The software must be :
– easy to useeasy to use
– reliablereliable
– easy to maintain and upgradeeasy to maintain and upgrade
– efficient efficient
Overall Block DiagramOverall Block Diagram
M4088 1/4" B/WCamera With Digital
Output
PIC16C7458-bit CMOS
Microcontroller w ith USB
PKLR2400S10 mW
RF Tranceiver
5 V, 300 mARegulated
Pow er Supply
PIC16C7458-bit CMOS
Microcontroller w ith USB
PKLR2400S10 mW
RF Tranceiver
Laptop Computer w ithUSB Interface
11-14A3~A0
15-17OEBW EBCSB
34-40RB0~RB7
1-8D0~D7
19-22RD3~RD0
28-30RD5~RD7
Slim LinePIR
MotionSensor
Vss, Vdd,D+, D-
12,31 11,32 24 23 Vss Vdd D+ D-
Vss, Vdd3,5 20,21
25, 26TX, RX
16, 14RXD, TXD
25, 26TX, RX
16, 14RXD, TXD
Vss, Vdd3,5 20,21
Vss, Vdd12,32 11,32
Vss, Vdd9, 10
Vss, Vdd
2-3RA0~RA1
W ireless Camera w ithTransmitter
Receiver
Conclusion Conclusion
• A security system can be designed so allow a guard to patrol a building more effectively.
• The guard would also respond to an alarm more efficiently.
• Requires fewer security guards.
• Safer for the guard because he/she knows where perpetrator is located.