Weather Station
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Weather Weather Station Station Weather station design for measuring weather parameters wind speed temperature and humidity
description
Weather Station. Weather station design for measuring weather parameters wind speed temperature and humidity. Weather Station Team. Imad Rabayaa. Abdulmjeed Safa. Dr.Imad Braik. Outline. Definition problem . Layout of the design. - PowerPoint PPT Presentation
Transcript of Weather Station
Weather StationWeather Station
Weather station design for measuring weather parameters wind speed temperature and humidity
Weather Station TeamWeather Station Team
Imad Rabayaa
Abdulmjeed Safa
Dr.Imad Braik
OutlineOutline
Definition problem . Layout of the design. ( practical & technical ) constraints of
weather station design.Using hardware to measure weather
parameters. Implementing software solutions to the
problem. practical tests .
Definition problem
Layout of the DesignLayout of the Design
Block diagram
PACK
BASE
PC
Sensors Tx RxSensors
RS232
LCD
Working togetherWorking together
The layout of this product will offer hardware solutions that integrate with the power of the PC.
Pack 2.4 GHZ Base
RS 232
PC
Practical ConstraintsPractical Constraints
Type Description
Economic The cost to build will be 500$ approximately .
Environmental The weather station will be able to operate in temperatures from -30°C to 60°C.
The weather station will be constructed with environmentally friendly products.
Sustainability Outdoor pack will be able to withstand outside conditions, with minimal maintenance.
Technical ConstraintsTechnical Constraints
Name Description
Transmission Distance (Pack to Base)
The distance will be 100 meters indoor.
Communication Protocol (Base to PC)
The weather station’s base will communicate with PC serially .
Radio Frequency Transmission frequency will be 2.4 GHZ.
Memory Requirements
The base microcontroller will have enough memory to store 12 hours of data.
Hard wareHard ware
Common hardware components . - Micro controller . - Humidity sensor. - Temperature sensor . Base hardware components . - LCD . - Wireless (Rx) . Pack hardware components . - Anemometer sensor. - Wireless (Tx) .
LCD :Liquid Crystal Display
Common hardware componentsCommon hardware components
Micro controller ( PIC 16f877 )– 10-bit ADC module.– Timers .– SSP .– USART .– CCP.
Common hardware components Common hardware components
Humidity Sensor
– There are several devices used to measure relative humidity.
- A stable design using hygrometer HS1101 with a TLC-
555 timer .
- RH = 565.1− 0.0767 f
RH : Relative Humidity
Humidity Circuit
Humidity Sensor (output)Humidity Sensor (output)
RH = 50%RH = 50%
RH = 91%RH = 91%
Common hardware componentsCommon hardware components
Temperature Sensor– ICTS LM35 used in the design .– It has an output voltage that is proportional to the Celsius temperature.
– Temperature (oC) = 5 * Vout * 100 / 1023 (oC /V) .
ICTS : Integrated Circuit Temperature Sensor
Temperature sensor Circuit
Temperature Sensor (output)Temperature Sensor (output)
@Input voltage 5v
Temperature : 22 oC
Pack hardware componentsPack hardware components
Anemometer– The basic cause of wind can be attributed to
variation in temperature.
– Starting speed 0.3 m/s.– Electrical output 3….1042 HZ .– Power Consumption 0.3….1.2 mA.
Anemometer (output)Anemometer (output)
Wind Speed : 2.7 m/s
WS : Wind Speed
Pack hardware componentsPack hardware components
Power supply – The power supply for the pack needs to be
as efficient as possible .
– Since the pack is powered
from batteries, it will not require
any rectification .
Hardware componentsHardware components
Wireless XBee Transmitter & Receiver.1- High Performance.
2- Low Power.
3- Advanced and
Networking Security.
4- bidirectional transmission.
5- 10 bit ADC.
Base hardware componentsBase hardware components
Power supply– The power supply for the base
needs to be accurate enough for the microcontroller to function properly .
LCD– 2 X 16 character matrix .– On-board controller .– Backlit display .
softwaresoftware
ApplicationsApplications
DifficultiesDifficulties
pressure sensor is difficult to obtain. Fault tolerance and nature of sensors adds
complexity to hardware and software . wireless. Low output frequency of the anemometer .
Conclusion & recommendationConclusion & recommendation
Hardware and software are integrated to solve the problem.
Parallel implementation of designed components allows problems to surface early in the process.less
wireless system used in the station is professional for long distances without data losses .
system is ready to be used by another students to complete building a whole weather station .
Questions?
