Automatic sattelliteDISH CONTROLLER.pptx

embedded sysytem presentation

1. EMBEDED SYSTEM AUTHOMATIC SATELLITE DISH CONTROLLER GROUP MEMBER NAME DEP’T ID Kassahun Tadesse CSE MIT/0077/06 Kidane Negash “ MIT/0082/06 Mebrat W.gewergs “ MIT/0089/06 Simon Kiros “ MIT/0119/06

2. CONTENT 1.INTRODUCTION 2.PROBLEM STATEMENT 3.SCOPE OF PROJECT 4.OBJECTIVE 5.LITARTURE REVIEW 6.METHDOLOGY 7.RESULT 8.CONCLUSION

3. INTRODUCTION A Satellite dish is a dish-shaped type of parabolic antenna designed to receive Electromagnetic signals from satellites, which transmit data transmissions or broadcasts such as satellite television. There are many commercial communications satellites in the geosynchronous orbit. Geostationary satellites are located in orbit directly above the equator and stay in the same place in the sky since they go around the earth at the same angular speed as that of the earth as it rotates. Satellites are objects in orbits about the Earth. An orbit is a trajectory able to maintain gravitational equilibrium to circle the Earth without power assist.

4. PROBLEM STATEMENT Nowadays the misalignment and disposition of satellite dish with satellite signal has routine thing for us and the problem has become frequent at homes, schools, colleges, industries and specially organization’s like EBC(Ethiopia broadcasting corporation) and ETC(Ethiopian telecommunication corporation). The majority of the satellite dish user needs to adjust the position of their Satellite Dish every time when there is misalignment or disposition of their Satellite Dish with the satellite signal . It is waste of time and Money in order to select the desired Satellite channel Human also mostly demands something that easily to be used without wasting Energy and we can develop a system which can adjust the azimuth and Elevation position of the Satellite dish automatically .

5. CONT……. This often will help us to control the satellite dish position by one microcontroller automatically. The researchers want to address the aforementioned problem by doing a microcontroller based project that control satellite dish positioning systems automatically.

6. SCOPE OF THE PROJECT Our project covers designing of Arduino based automatic satellite dish positioning system using stepper motor. We used push buttons that takes the input from the users desired satellite channel and the pushbuttons sends the signal to the Arduino and the Arduino adjusts the azimuth and elevation angle of the satellite dish depending on the user selection.

7. OBJECTIVE The general objective of this project used to build satellite dish positioning system by automatically control of the Elevation and Azimuth angle using two Stepper motor . I t can minimize trouble shooting error and maintenance cost . It reduce the time wasted for the adjustment of the satellite dish. It reduce the difficulty of adjusting the satellite dish to get the exact angle .

8. LITERATURE REVIEW There are a number of studies for improving the control circuit for positioning satellite dish . Rafael, M.C., J.B. Gonçalves , and P.P.L. developed the positioning circuit consisted from satellite receiver, GPS module, computer, dish and motors. GPS determine the longitude and latitude of the dish it connected to the computer using serial bus. Satellite receiver is responsible for measuring the signal strength received from the satellite periodically and it sends these measurements to the computer via serial bus. Computer responsible for controlling the whole system it receives the dish position from the GPS module and the signal strength from the receiver then it calculates the azimuth and elevation angles. The program moves the motors according to the azimuth and elevation angles.

9. CONT ….. Since the dish is assumed to be in the correct position the signal strength may be weak and for insuring that the dish in the correct position with good signal strength the satellite receiver sends a periodic report about the signal strength to the computer then the computer uses these reports to align the dish so it receives good signal strength from the satellite . The benefits of this poisoning circuit it uses GPS module for determining the longitude and latitude and it uses computer program for calculating the azimuth and elevation angles. The drawbacks of this poisoning circuit it’s wired. Wires restrict the user to stay within a small geographic area.

10. PROJECT PREVIEW

11. METHDOLOGY Different components and devices are used to develop the automatic dish controller. S ome component and devices are as follows: - Arduino Mega 2560 microcontroller (The brain of the system ). Stepper Motor Push button Sensor Liquid crystal display ( LCD) Transistor Power supply for hardware implementation

12. CONT…. propose to design and implement a dish control system to assist in positioning and general installation of satellite dishes. This system will seek to use push button, Arduino, two Stepper motor to adjust the dish position. It consists of two motors that will enable the dish to move both in horizontal and vertical direction. An Arduino will be used as the controller to interface between the signals from the push button, to adjusting the motors . In the end, this project seeks to solve the problem of manually adjusting the dish and providing a safe solution for mounting satellite dishes.

13. CONT….. FLOW CHART

14. RESULT PROTEUS SIMULATION

15. Conclusion Satellite communication opened up a whole world of TV/Radio entertainment with wide variety of programs. build satellite dish positioning system by automatically control of the Elevation and Azimuth angle using two Stepper motor . The researchers want to address the aforementioned problem by doing a microcontroller based project that control satellite dish positioning systems automatically.

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