Upload
raj200598
View
221
Download
0
Embed Size (px)
Citation preview
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 1/20
WIRELESS ON-AIR WEATHER
CUM SPY STATION
Yoganand Gadekar 70491Santosh Toraskar 70492Prajyot Parkar 70493Pritam Thomke 70495
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 2/20
INTRODUCTION
Weather Monitoring is an Important aspect.
Monitoring few basic conditions can help indetecting natural calamities.
Generally We check weather on TV or Radio. This Project Helps in Monitoring Basic Weather
Conditions.
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 3/20
EXISTING TECHKNOWLOGY
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 4/20
BASIC BLOCKS
REMOTE STATION.-Transmitter 434MHz.- Sensors.
BASE STATION.-Receiver 434MHz.
-Interface to Computer.
POWER SUPPLY SECTION.
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 5/20
H/W REQUIREMENTS
RS232
MAX 232
Transmitter Module
Receiver Module Antenna
PIC16f873
PIC Programmer
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 6/20
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 7/20
REMOTE STATION
Solar Powered And Wakes up once A Minute toCollect and Transfer Data
Microcontroller PIC16F873
Sensors Used: Humidity, Temperature, Image
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 8/20
Humidity Sensor HS1101 Combined with TLC555Produces Humidity Dependent Frequency
R.H = 565.1-0.0767*F
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 9/20
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 10/20
Temperature Sensor LM335
O/P of LM335 Equals Absolute Temperature inDegree Kelvin Divided by 100
Vout= Temperature(K)/100
In Degree Celsius = 100*VOUT – 273
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 11/20
Includes Wireless Video Camera.
Remote Station is nothing but A “RC ControlledMachine” which can Fly up to A Height of 30FT.
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 12/20
MICROCONTROLLER: PIC16F873
3 Bidirectional ports
3 Timer modules
Power down mode( sleep mode)
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 13/20
TRANSMITTER
Connected at the O/P of Remote Station
Transmits using ASK.
Transmitter Characteristics:-
Condition:-50E Load,434 MHz
Parameter Min. Typ. Max. Unit
O/P Power 1 3 6 mW
Supply Current 9 10 19 mA
Supply Vtg.Range
3 5 12 v
Data Rate 300 1K 10K bps
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 14/20
Antenna used : whip antenna
Whip antenna is the common eg of monopoleantenna
Toroidal radiation pattern Vertically polarised
Freq:434MHz
Lenghth:5in Dia:0.2in
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 15/20
BASE STATION
Using PIC16F873
Detect And Decode Data From The Receiver (ASK Demodulation)
Perform Error Correction On Received Data-Hamming Code.
Encode The Received Data Into ASCII Format
Transmit The ASCII Data To RS232 Port (8N1
Format) Detect And Respond To RS232 For Latest And
Previous Data.
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 16/20
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 17/20
BASIC BLOCKS OF RECEIVER
Power Supply Block
Receiver Module
Data Processing Block
Interfacing Block Camera Receiver
RC Controller
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 18/20
RECEIVER
Uses ASK
Receiver Characteristics:-
Paramete
r
Min. Typ. Max. Unit
Sensitivity -104 -102 dBm
ASK outlogic High
0.7*vcc V
ASK outlogic Low 0.3*Vcc V
Supply Current
2.4 3 mA
Supply Vtg. +4.75 +5 +5.25 V
Data Rate 300 1K 10K bps
8/3/2019 Wireless on-Air Weather Cum Spy Station
http://slidepdf.com/reader/full/wireless-on-air-weather-cum-spy-station 19/20
MERITS
Remote Station is A On-Air Device Which can beControlled using Radio Signals.
Remote Station is Solar Powered.
Wireless Camera on Remote Station gives live Videos at an Effective Height of 30Ft.
Remote station can be used for fire