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Weather Station

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.

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Weather Station

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  1. Weather Station Weather station design for measuring weather parameters wind speed temperature and humidity

  2. Weather Station Team Imad Rabayaa Abdulmjeed Safa Dr.Imad Braik

  3. Outline • 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 .

  4. Definition problem

  5. Layout of the Design • Block diagram Sensors Sensors Tx Rx PACK BASE RS232 PC LCD

  6. Working together • The layout of this product will offer hardware solutions that integrate with the power of the PC. PC Pack 2.4 GHZ Base RS 232

  7. Practical Constraints

  8. Technical Constraints

  9. Hard 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

  10. Common hardware components • Micro controller ( PIC 16f877 ) • 10-bit ADC module. • Timers . • SSP . • USART . • CCP.

  11. 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

  12. Humidity Circuit

  13. Humidity Sensor (output) RH = 50% RH = 91%

  14. Common 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

  15. Temperature sensor Circuit

  16. Temperature Sensor (output) @ Input voltage 5v Temperature : 22 oC

  17. Pack 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.

  18. Anemometer (output) Wind Speed : 2.7 m/s WS : Wind Speed

  19. Pack 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 .

  20. Hardware components • Wireless XBee Transmitter & Receiver. 1- High Performance. 2- Low Power. 3- Advanced and Networking Security. 4- bidirectional transmission. 5- 10 bit ADC.

  21. Base 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 .

  22. software

  23. Applications

  24. Difficulties • 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 .

  25. Conclusion & 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 .

  26. THANK YOU Questions?

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