Development of a Radio-based Telemetry System For Use in Areas Without Internet Services

Tan, Moi Chya (2018) Development of a Radio-based Telemetry System For Use in Areas Without Internet Services. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

This project is about Radio-based Telemetry System for areas without Internet services. Arguments have been forwarded as to why radio-based telemetry is necessary for data gathering in areas without Internet. Besides that, the concept of wireless communication, type of wireless communication and its associated hardware/software and advantages and disadvantages are also discussed. Chapter 1 introduction deals with the research background, problem statement, research objectives, research scope and research contribution. In chapter 2 literature review, the concept of wireless telemetry system was discussed and both wire system and wireless system were compared. Other than that, the different types of wireless communication such as Infrared (IR) wireless communication, Satellite communication, Laser communication, Visible Light communications and Radio Frequency communication were also discussed including their advantages and disadvantages. In chapter 3 methodology, the tool frequently used in telemetry, which is ADC, was touched on and two different types of ADC which is Flash ADC and Successive Approximation ADC were discussed in this chapter. Other than that, the required hardware such as transmitter, receiver, temperature sensor, rain sensor, light intensity sensor, ERA900TRS Transceiver were also discussed. Also, the flowchart of transmitter, receiver and selection of data had been discussed. In chapter 4 results and discussion, transmission of data was performed over a swimming to determine if radio waves have been absorbed or reflected by the water. Transmission was also performed across a concrete wall to check the effect of a barrier to radio waves. The third test was done by placing the transmitter at the ground floor of M-Block and the receiver at the third floor of M-Block to simulate transmission at the bottom of a hill. The positions of the transmitter and receiver were later reversed to simulate transmission from a hill top. The last test was conducted by creating a water-drop curtain between the transmitter and receiver to simulate a rainy day. The results of all tests were given and discussed in this chapter.